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1.
Nymphalidae is the largest family of butterflies with their phylogenetic relationships not adequately approached to date. The mitochondrial genomes (mitogenomes) of 11 new nymphalid species were reported and a comparative mitogenomic analysis was conducted together with other 22 available nymphalid mitogenomes. A phylogenetic analysis of the 33 species from all 13 currently recognized nymphalid subfamilies was done based on the mitogenomic data set with three Lycaenidae species as the outgroups. The mitogenome comparison showed that the eleven new mitogenomes were similar with those of other butterflies in gene content and order. The reconstructed phylogenetic trees reveal that the nymphalids are made up of five major clades (the nymphaline, heliconiine, satyrine, danaine and libytheine clades), with sister relationship between subfamilies Cyrestinae and Biblidinae, and most likely between subfamilies Morphinae and Satyrinae. This whole mitogenome-based phylogeny is generally congruent with those of former studies based on nuclear-gene and mitogenomic analyses, but differs considerably from the result of morphological cladistic analysis, such as the basal position of Libytheinae in morpho-phylogeny is not confirmed in molecular studies. However, we found that the mitogenomic phylogeny established herein is compatible with selected morphological characters (including developmental and adult morpho-characters).  相似文献   

2.
The result of a phylogenetic analysis of the Sepsidae based on larval characters is presented. It is shown that cyclorrhaphan larvae can be as rich a source of characters as Nematocera immatures when investigated using an SEM. The cladistic analysis comprised fifty-two species in sixteen genera of the Sepsidae and five outgroup species and used fifty-seven morphological characters. It found seven parsimonious trees which only differed with respect to the arrangement of some species within the genus Themira. The basal dichotomies of the phylogenetic trees are particularly well supported, indicating the conservative nature of larval characters. Orygma is confirmed as the sister group of all the remaining sepsids, the Sepsinae. There is good larval evidence that Ortalischema is the sister group of all remaining Sepsinae and that the Toxopodinae constitute an early radiation within the Sepsidae. According to larval data, some genera are paraphyletic ( Themira, Palaeosepsis ), but adult characters appear to contradict these findings. Among the traditionally recognized higher taxa within the Sepsidae, Hennig's Themira species-group and Steysbal's Sepsini have to be rejected as polyphyletic. However, Hennig's Sepsis species-group is confirmed as monophyletic and will probably constitute one major element of a future phylogenetic system of the Sepsidae. States of the strongly modified fore-legs of some adult sepsid males are mapped onto the phylogenetic tree, largely confirming Šulc's ideas about the evolution of these features. The origin and evolution of male sternites with brushes and a gland on the tibiae of the males ('osmeterium') are discussed. Whereas adult characters point to a sister-group relationship between the Sepsidae and the Ropalomeridae, larval characters appear to indicate a sister-group relationship between the Coelopidae and the Sepsidae. The evidence for both hypotheses is critically evaluated.  相似文献   

3.
Phylogeny of the Nymphalidae (Lepidoptera)   总被引:9,自引:0,他引:9  
A generic-level phylogeny for the butterfly family Nymphalidae was produced by cladistic analysis of 234 characters from all life stages. The 95 species in the matrix (selected from the 213 studied) represent all important recognized lineages within this family. The analysis showed the taxa grouping into six main lineages. The basal branch is the Libytheinae, with the Danainae and Ithomiinae on the next branch. The remaining lineages are grouped into two main branches: the Heliconiinae-Nymphalinae, primarily flower-visitors (but including the fruit-attracted Coeini); and the Limenitidinae (sensu strictu), Biblidinae, and the satyroid lineage (Apaturinae, Charaxinae, Biinae, Calinaginae, Morphinae, Brassolinae, and Satyrinae), primarily fruit-attracted. Data partitions showed that the two data sets (immatures and adults) are very different, and a partitioned Bremer support analysis showed that the adult characters are the main source of conflict in the nodes of the combined analysis tree. This phylogeny includes the widest taxon coverage of any morphological study on Nymphalid butterflies to date, and supports the monophyly and relationships of most presently recognized subgroups, providing strong evidence for the presently accepted phylogenetic scheme.  相似文献   

4.
We have inferred the first empirically supported hypothesis of relationships for the cosmopolitan butterfly subfamily Satyrinae. We used 3090 base pairs of DNA from the mitochondrial gene COI and the nuclear genes EF-1alpha and wingless for 165 Satyrinae taxa representing 4 tribes and 15 subtribes, and 26 outgroups, in order to test the monophyly of the subfamily and elucidate phylogenetic relationships of its major lineages. In a combined analysis, the three gene regions supported an almost fully resolved topology, which recovered Satyrinae as polyphyletic, and revealed that the current classification of suprageneric taxa within the subfamily is comprised almost completely of unnatural assemblages. The most noteworthy findings are that Manataria is closely related to Melanitini; Palaeonympha belongs to Euptychiina; Oressinoma, Orsotriaena and Coenonympha group with the Hypocystina; Miller's (1968). Parargina is polyphyletic and its components group with multiple distantly related lineages; and the subtribes Elymniina and Zetherina fall outside the Satyrinae. The three gene regions used in a combined analysis prove to be very effective in resolving relationships of Satyrinae at the subtribal and tribal levels. Further sampling of the taxa closely related to Satyrinae, as well as more extensive sampling of genera within the tribes and subtribes for this group will be critical to test the monophyly of the subfamily and establish a stronger basis for future biogeographical and evolutionary studies.  相似文献   

5.
Euptychiina is the most species‐rich subtribe of Neotropical Satyrinae, with over 450 known species in 47 genera (14 monotypic). Here, we use morphological characters to examine the phylogenetic relationships within Euptychiina. Taxonomic sampling included 105 species representing the majority of the genera, as well as five outgroups. A total of 103 characters were obtained: 45 from wing pattern, 48 from genitalia and 10 from wing venation. The data matrix was analysed using maximum parsimony under both equal and extended implied weights. Euptychiina was recovered as monophyletic with ten monophyletic genera, contrasting previous DNA sequence‐based phylogenies that did not recover the monophyly of the group. In agreement with sequence‐based hypotheses, however, three main clades were recognized: the ‘Megisto clade’ with six monophyletic and three polyphyletic genera, the ‘Taygetis clade’ with nine genera of which three were monophyletic, and the ‘Pareuptyhia clade’ with four monophyletic and two polyphyletic genera. This is the first morphology‐based phylogenetic hypothesis for Euptychiina and the results will be used to complement molecular data in a combined analysis and to provide critical synapomorphies for clades and genera in this taxonomically confused group.  相似文献   

6.
Abstract.  The Cetoniidae, the showiest of scarabs, comprises some 3900 species in 515 genera, distributed worldwide except for subpolar areas and some offshore New Zealand islands. Parsimony analysis of 76 larval and adult characters and 42 terminal taxa supports the monophyly of Cetoniidae (sensu Krikken, 1984 ), but not of the traditionally considered subfamilies Cetoniinae and Trichiinae (sensu Krikken, 1984 ). In the study taxon, larval characters are shown to be more informative than those of adults for deeper phylogeny. The evolution of some larval characters (head and legs) in relation to feeding habits is discussed on the basis of phylogenetic analysis. The results show an evolutionary shift from wood associations to a higher ecological plasticity that allows the larvae to feed on wide sources of organic matter (including compost, dung, gopher burrows, packrat middens, ant debris piles, etc.).  相似文献   

7.
A cladistic analysis of forty-one species, belonging to ten genera, of the Cidariini sensu Herbulot from the Holarctic and the Indo-Australian areas, was performed using seventy-seven characters including larval and pupal data. Eight most parsimonious cladograms were found (length 398, CI 0.30, RI 0.70). The monophyly of the Cidariini is demonstrated, using selected species of Xanthorhoini sensu Herbulot as the outgroup. The relationships among the genera are as follows: ( Ecliptopera ( Eulithis ( Cidaria (( Plemyria ( Chloroclysta , Dysstroma ))(( Thera , Pennithera ) ( Heterothera ))))). This result suggests some taxonomic changes: Dysstroma Hübner, stat. rev. and Chloroclysta Hübner stat. rev. are sister taxa; Heterothera Inoue stat. rev. includes Viidaleppia Inoue, syn.n., Heterothera firmata (Hübner) comb.n. is transferred from Pennithera Viidalepp to Heterothera sensu lato . The results of confirmation and incongruence tests suggest that the characters from adult and immature stages exhibit the same evolutionary pattern. Thus the phylogeny derived from the combined data matrix does not give a misleading conclusion, even though there are many missing states in the larval data set.  相似文献   

8.
Abstract. Larvae of the staphylinid subfamily Trichophyinae are described for the first time based on larvae of a new species of Trichophya from the southwestern United States. Adults and larvae of the new species, Trichophya texana Ashe & Newton (type locality Texas, Brewster Co., Big Bend National Park), are described and illustrations of both provided. Also given are a key for separation of the Nearctic species of Trichophya , a checklist of the known World fauna of the Trichophyinae (including first report of the genus from Mexico and Guatemala), and a characterization of the subfamily Trichophyinae based on both larvae and adults. The relationships of major genera and higher taxa in the tachyporine group of staphylinid subfamilies are analysed cladistically using larval characters. No larval characters were found that provide evidence for the monophyly of the tachyporine group; no evidence was found for the monophyly of the Tachyporinae; Charhyphus, Olisthaerus and Phloeocharis (Phloeocharinae + Olisthaerinae) form a monophyletic group; the Trichophyinae and Habrocerinae are sister groups and together probably are the sister group to the Aleocharinae; the Aleocharinae are confirmed to be monophyletic based on larval characters; and Gymnusa + Deinopsis form the sister group to the remainder of the Aleocharinae.  相似文献   

9.
We studied the vertical distribution of Lepidoptera from a canopy walkway within a dipterocarp rain forest at Kinabalu Park (Borneo) using three different methods: (1) Bait traps to survey fruit-feeding nymphalid butterflies, (2) standardized counts for predominantly flower-visiting butterflies and their potential predators, aerial-hawking birds, and (3) attraction by blacklight for hawk- and tiger moths. There was a distinct decrease in the abundance of fruit-feeding nymphalids towards the canopy, probably due to a reduced and less predictable availability of rotting fruits in higher strata. These constraints might also be responsible for a higher abundance variation in the canopy, and a significant shift in size from larger species in the understorey to smaller ones in the canopy. Changes of microclimate and the conspicuous increase of insectivorous aerial-hawking birds from ground to canopy layer may be responsible for the prominent change in species composition of fruit-feeding nymphalids between 20 and 30 m. Nectar-feeding Lepidoptera showed a reversed abundance pattern. One main factor contributing to the much higher abundance of flower-visiting butterflies and moth taxa in the canopy, such as Sphingidae and some Arctiinae, might be the increase of nectar resources available in upper vegetation layers. A distinctly higher diversity in hawkmoths was also found in the canopy. A higher abundance of insectivorous aerial-hawking birds in the canopy might contribute to the shift in body design of fruit-feeding nymphalids from more slender bodies at lower vegetation layers to stouter ones (i.e. species which are stronger on the wing) in the canopy. Larval resources could play an additional role in specialisation on but a small part of the vertical gradient. This may explain stratification pattern of the nymphalid subfamilies Morphinae and Satyrinae. Monocotyledoneous larval food plants of both taxa, whose flight activity is largely restricted to the understorey, occur mostly in lower vegetation layers. Our observations on a wide taxonomic and ecological range of butterflies and moths indicate that tropical forest canopies hold a distinct and unique Lepidoptera fauna, whose species richness and abundance patterns differ from lower strata. However, the notion of tropical forest canopies as peaks of terrestrial diversity does not hold uniformly for all taxa or guilds.  相似文献   

10.
The Afrotropical fruit fly genus Ceratitis MacLeay is an economically important group that comprises over 89 species, subdivided into six subgenera. Cladistic analyses of morphological and host use characters have produced several phylogenetic hypotheses for the genus. Only monophyly of the subgenera Pardalaspis and Ceratitis (sensu stricto) and polyphyly of the subgenus Ceratalaspis are common to all of these phylogenies. In this study, the hypotheses developed from morphological and host use characters are tested using gene trees produced from DNA sequence data of two mitochondrial genes (cytochrome oxidase I and NADH-dehydrogenase subunit 6) and a nuclear gene (period). Comparison of gene trees indicates the following relationships: the subgenus Pardalaspis is monophyletic, subsection A of the subgenus Pterandrus is monophyletic, the subgenus Pterandrus may be either paraphyletic or polyphyletic, the subgenus Ceratalaspis is polyphyletic, and the subgenus Ceratitis s. s. might not be monophyletic. In addition, the genera Ceratitis and Trirhithrum do not form reciprocally monophyletic clades in the gene trees. Although the data statistically reject monophyly for Trirhithrum under the Shimodaira-Hasegawa test, they do not reject monophyly of Ceratitis.  相似文献   

11.
Cerapeplus siamensis gen.n., sp.n. from Thailand is described and illustrated. The new genus is characterized by filament-based lamellar secretions arising from the lateral body margin, a feature observed for the first time in Coleoptera. Possible autapomorphies for the micropeplid genera are discussed. It is concluded that Cerapeplus and Kalissus are monophyletic; Micropeplus and/Or Peplomicrus are probably polyphyletic but both genera together form a monophyletic group. A number of characters support the family status of the micropeplids recently proposed by some authors. A revised family diagnosis is provided.  相似文献   

12.
Abstract We develop a morphological dataset for the rove beetle subfamily Euaesthetinae comprising 167 morphological characters (135 adult and 32 larval) scored from 30 terminal taxa including 25 ingroup terminals (from subfamilies Euaesthetinae and Steninae) and five outgroups. Four maximum parsimony analyses using different sets of terminals and character sets were run to test the monophyly of (1) Euaesthetinae, (2) Steninae, (3) Euaesthetinae + Steninae, (4) euaesthetine tribes Austroesthetini, Alzadaesthetini, Euaesthetini, Fenderiini and Stenaesthetini, and (5) the ten currently known austral endemic genera together. Analyses of adult and larval character sets separately and in combination recovered the monophyly of Euaesthetinae, Steninae, and both subfamilies together, with strong support. Analysis of 13 ingroup terminals for which complete data were available suggests that monophyly of Euaesthetinae is supported by 19 synapomorphies (13 adult, six larval), of Steninae by 23 synapomorphies (14 adult, nine larval), and of both subfamilies together by 24 synapomorphies (21 adult, three larval). Within Euaesthetinae, only the tribe Stenaesthetini was recovered as monophyletic based on adult characters, and in no analyses were the ten austral endemic genera recovered as a monophyletic group. Phylogenetic relationships among euaesthetine genera were weakly supported, although analyses including adult characters supported monophyly of Octavius and Protopristus separately, and of Octavius + Protopristus, Austroesthetus + Chilioesthetus and Edaphus + Euaesthetus. Steninae may include a third genus comprising two undescribed species probably possessing a ‘stick–capture’ method of prey capture, similar to that in Stenus. These two species formed a strongly supported clade recovered as the sister group of Stenus based on adult characters. Diagnoses and a key to adults are provided for the 15 euaesthetine genera currently known from the austral region (Australia, New Zealand, South Africa and southern South America). Euaesthetine larvae previously were known only for Euaesthetus, and we describe the larvae of nine more genera and provide the first larval identification key for genera of Euaesthetinae.  相似文献   

13.
Abstract — The relationships of the clicking Elateroidea beetles were studied with the help of parsimony analysis using Hennig86. The character matrix included 70 characters and 27 taxa. The results demonstrate the monophyly of the group Throscidae sensu Crowson, contrary to views presented in other papers. Methods for solving this problem were sought. When several minimum length solutions were obtained, successive weighting and a search for a strict consensus tree identical with one of the original trees appeared to be acceptable ways for trying to identify the preferred solution. When conflicting trees from separate data sets were compared, a combined global analysis turned out to be impossible to perform because the data sets used different terminal taxa. In this case, the incongruence and total support tests provided by Farris' programs RNA and KON proved indispensable. The conflict found between the results obtained here and those presented by other workers using a large suite of larval characters were shown to be caused by an incongruent data matrix used in the latter study—the larval data set resulted in a polyphyletic ingroup and suggests relationships quite different from adult data alone. Directed large scale homoplasy due to repeated re-invasion of two major habitats by separate clades may be the factor causing difficulties in coding the larval characters.  相似文献   

14.
Abstract. The morphology and chaetotaxy of the first instar larvae of six species belonging to the genera Hipparchia, Kanetisa and Chazara are described. Specific characters are stated, drawn mainly from size, setal length and morphology, and the shape of the suranal plate. Several characters, other than chaetotaxy, that are of potential use in nymphalid systematics are discussed. The larval chaetotaxy is briefly compared with that of both heliconiine and danaine first instar larvae.  相似文献   

15.
Gastrolobium (Fabaceae: Mirbelieae) is an endemic Australian genus that produces toxic sodium monofluoroacetate. A phylogenetic reconstruction of Gastrolobium and the related genera Brachysema, Callistachys, Jansonia, Nemcia, Oxylobium, and Podolobium is presented, using sequence data from three regions-the psbA-trnH intergenic spacer and the trnK 5' intron from chloroplast DNA and the 3' end of the external transcribed spacer (ETS) from nuclear ribosomal DNA. Gastrolobium is shown to be paraphyletic, with Brachysema, Jansonia, Nemcia, and Oxylobium lineare nesting within it, and Nemcia is shown to be polyphyletic within Gastrolobium. Past key morphological characters, such as fluoroacetate content and characters associated with pollination syndrome, are shown to be homoplastic, with fluoroacetate possibly a plesiomorphic condition lost in more derived species. Podolobium is also shown to be polyphyletic, with the P. ilicifolium group sister to Gastrolobium and the P. alpestre group sister to Callistachys, a member of the Oxylobium group. It is recommended that Gastrolobium be expanded to include Brachysema, Jansonia, Nemcia, and Oxylobium lineare, while further work is required to test the sister-group relationship between Podolobium s.s. (sensu stricto) and Gastrolobium.  相似文献   

16.
Abstract: The phylogeny of the families Lecanoraceae and Bacidiaceae (Lecanorales, Ascomycota) was investigated using 29 nuclear small subunit ribosomal DNA sequences, 9 of which were newly determined. The data set contained 368 variable characters, 234 of which were parsimony-informative. Phylogenetic estimations were performed with maximum parsimony and maximum likelihood optimality criteria. In the most parsimonious and most likely reconstructions, the Bacidiaceae sensu Hafellner 1988 forms a monophyletic group and the Lecanoraceae sensu Hafellner a paraphyletic group. The genera Tephromela and Scoliciosporum appear to belong outside these families. However, the hypothesis that the Lecanoraceae sensu Hafellner is monophyletic cannot be rejected, as indicated by a Kishino-Hasegawa test. Three hypotheses were rejected by Kishino-Hasegawa tests, viz. (1) that the Lecanoraceae and Bacidiaceae together form a monophyletic group; (2) that both the Lecanoraceae (incl. Scoliciosporum ) and Bacidiaceae (incl. Tephromela ) are monophyletic; and (3) that the ascus apex anatomy reflects phylogeny. The suborder Lecanorineae is paraphyletic unless the Stereocaulaceae and Cladoniaceae are included. One or both of the Bacidia and Lecanora types of ascus have probably evolved at least twice.  相似文献   

17.
18.
亚洲蝮亚科蛇属间系统发生支序分析 (蛇亚目:蝰科)   总被引:1,自引:0,他引:1  
郭鹏  张服基 《生命科学研究》2000,4(3):262-266,280
在大量比较形态研究的基础上,选择了5个特征方面28个性状,以支序分析方法探讨了分布于亚洲蝮亚科蛇5属14种的系统发生关系,结果表明:该亚科蛇类可以划分为3个不同的类群,第一个类群包括尖吻蝮属、瘤鼻蝮属、红口腹属,它们具有较多的祖征,代表了该科中原始一类,基中红口蝮可能是最原始的一属;亚洲蝮属单独形成一个类群;第三个类群为原广义的烙铁头蛇属,包括竹叶青蛇属、原矛蝮属、烙铁头蛇属、黑绿烙铁头蛇属、莽山  相似文献   

19.
Butterfly wing color-patterns are determined in the prospective wing tissues during the late larval and early pupal stages. To study the cellular differentiation process of wings, morphological knowledge on pupal wings is prerequisite. Here we systematically examined morphological patterns of the pupal wing cuticular surface in a wide variety of nymphalid butterflies in relation to adult color-patterns. Several kinds of pupal wing patterns corresponding to particular adult color-pattern elements were widely observed in many species. Especially noteworthy were the pupal "focal" spots corresponding to the adult border ocelli system, which were detected in many species of Nymphalinae, Apaturinae, Argynninae, Satyrinae, and Danainae. Striped patterns on the pupal wing cuticle seen in some species of Limenitinae, Ariadnae, and Marpesiinae directly corresponded to those of the adult wings. In Vanessa cardui, eyespot-like pattern elements were tentatively produced during development in the wing tissue underneath the pupal spots and subsequently erased, suggesting a mechanism for producing novel color-patterns in the course of development and evolution. The pupal focal spots reasonably correlated with the adult eyespots in size in Precis orithya and Ypthima argus. We physically damaged the pupal focal spots and their corresponding cells underneath in these species, which abolished or inhibited the formation of the adult eyespots. Taken together, our results clarified that pupal cuticle patterns were often indicative of the adult color-patterns and apparently reflect molecular activity of organizing centers for the adult color-pattern formation at least in nymphalid butterflies.  相似文献   

20.
The Lanceocercata are a clade of stick insects (Phasmatodea) that have undergone an impressive evolutionary radiation in Australia, New Caledonia, the Mascarene Islands and areas of the Pacific. Previous research showed that this clade also contained at least two of the nine New Zealand stick insect genera. We have constructed a phylogeny of the Lanceocercata using 2277 bp of mitochondrial and nuclear DNA sequence data to determine whether all nine New Zealand genera are indeed Lanceocercata and whether the New Zealand fauna is monophyletic. DNA sequence data were obtained from mitochondrial cytochrome oxidase subunits I and II and the nuclear large subunit ribosomal RNA and histone subunit 3. These data were subjected to Bayesian phylogenetic inference under a partitioned model and maximum parsimony. The resulting trees show that all the New Zealand genera are nested within a large New Caledonian radiation. The New Zealand genera do not form a monophyletic group, with the genus Spinotectarchus Salmon forming an independent lineage from the remaining eight genera. We analysed Lanceocercata apomorphies to confirm the molecular placement of the New Zealand genera and to identify characters that confirm the polyphyly of the fauna. Molecular dating analyses under a relaxed clock coupled with a Bayesian extension to dispersal‐vicariance analysis was used to reconstruct the biogeographical history for the Lanceocercata. These analyses show that Lanceocercata and their sister group, the Stephanacridini, probably diverged from their South American relatives, the Cladomorphinae, as a result of the separation of Australia, Antarctica and South America. The radiation of the New Caledonian and New Zealand clade began 41.06 million years ago (mya, 29.05–55.40 mya), which corresponds to a period of uplift in New Caledonia. The main New Zealand lineage and Spinotectarchus split from their New Caledonian sister groups 33.72 (23.9–45.62 mya) and 29.9 mya (19.79–41.16 mya) and began to radiate during the late Oligocene and early Miocene, probably in response to a reduction in land area and subsequent uplift in the late Oligocene and early Miocene. We discuss briefly shared host plant patterns between New Zealand and New Caledonia. Because Acrophylla sensu Brock & Hasenpusch is polyphyletic, we have removed Vetilia Stål from synonymy with Acrophylla Gray.  相似文献   

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