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1.
对螟黄足盘绒茧蜂复合群Cotesia flavipes complex (膜翅目:茧蜂科:小腹茧蜂亚科)分布全世界的5个种和外群侧沟茧蜂Microplitis 及荻茧蜂Diolcogaster 的25个性状,以及复合群5个种和外群螟蛉盘绒茧蜂Cotesia ruficrus、粘虫盘绒茧蜂Cotesia kariyai、粉蝶盘绒茧蜂Cotesia glomerata 的24个性状,分别进行比较研究,并运用支序分析的方法探讨该复合群内5个种种间的系统发育关系。支序分析表明螟黄足盘绒茧蜂复合群是一单系群,二化螟盘绒茧蜂C. chilonis 和大螟盘绒茧蜂C. sesamiae 近缘,芦螟盘绒茧蜂C. chiloluteelli 和汉寿盘绒茧蜂C. hanshouensis 近缘,螟黄足盘绒茧蜂C. flavipes相对独立。 以上研究表明无论是以近缘属作外群还是以同属其它种作外群,所得结果基本上都能反映螟黄足盘绒茧蜂复合群各种之间的分类地位。  相似文献   

2.
基于28S rRNA D2序列的内茧蜂亚科的分子系统发育   总被引:4,自引:0,他引:4  
首次利用同源28S rRNA D2基因序列对内茧蜂亚科Rogadinae (昆虫纲Insecta:膜翅目Hymenoptera:茧蜂科Braconidae)进行了分子系统学研究。本研究从95%~100%乙醇浸渍保存的标本中提取基因组DNA并扩增了10种内群种类和5种外群种类的28S rDNA D2片段并测序(GenBank序列号AY167645-AY167659),利用BLAST搜索相关的同源序列, 采用了GenBank中13个种类的28S rRNA D2同源序列,然后据此进行分子分析。利用3个外群(共8个种类)和3种建树方法 (距离邻近法distance based neighbor joining, NJ; 最大俭约法maximum parsimony, MP; 和最大似然法maximum likelihood, ML)分析了内茧蜂亚科内的分子系统发育关系。结果表明,由分子数据产生的不同的分子系统树均显示内茧蜂亚科是一个单系群。内茧蜂亚科内依据形态和生物学特征的分群(族和亚族)及其系统发育关系得到部分支持。NJ、MP和ML分析结果均表明内茧蜂族Rogadini不是一个单系,而是一个并系,其余3族则得到不同程度的支持。内茧蜂族可分成2个分支:“脊茧蜂属Aleiodes+弓脉茧蜂属Arcaleiodes”和“沟内茧蜂属Canalirogas+锥齿茧蜂属Conspinaria+刺茧蜂属Spinaria+内茧蜂属Rogas”,二者不是姐妹群。脊茧蜂属Aleiodes和弓脉茧蜂属Arcaleiodes始终是姐妹群。脊茧蜂属Aleiodes是一个单系,并可分成2个姐妹分支,这与依据形态和生物学特征的亚属分群相一致。弓脉茧蜂属Arcaleiodes Chen et He,1991是一个独立的属。分支“沟内茧蜂属Canalirogas+锥齿茧蜂属Conspinaria+刺茧蜂属Spinaria+内茧蜂属Rogas”的单系性仅得到部分分子数据的支持;因形态特异(腹部成甲壳状)而列为亚族级的刺茧蜂属Spinaria,分子分析没有证实这一点。横纹茧蜂族Clinocentrini是个单系,并在内茧蜂亚科的系统发育中处于基部(原始)的位置。我们研究结果还表明,阔跗茧蜂属Yelicones和潜蛾茧蜂属Stiropius相对应的阔跗茧蜂族Yeliconini和潜蛾茧蜂族Stiropiini为2个独立的分支, 与形态和生物学的结果一致,但它们在内茧蜂亚科的系统发育的位置不明,有待今后进一步研究。  相似文献   

3.
本研究选取优茧蜂亚科Euphorinae (膜翅目Hymenoptera:茧蜂科Braconidae) 的8族19属23种作为内群,茧蜂其它6个亚科的8属8种作外群,首次结合同源核糖体28S rDNA D2基因序列片段和41个形态学特征对该亚科进行了系统发育学研究.利用"圆口类"的内茧蜂亚科Rogadinae、茧蜂亚科Braconinae、矛茧蜂亚科Doryctinae的3个亚科为根,以PAUP*4.0和MrBayes3.0B4软件分别应用最大简约法 (MP) 和贝叶斯法对优茧蜂亚科的分子数据和分子数据与非分子数据的结合体进行了分析;并以PAUP*4.0对优茧蜂亚科的28S rDNA D2基因序列的片段的碱基组成与碱基替代情况进行了分析.结果表明:优茧蜂亚科的28S rDNA D2基因序列片段的GC%含量在40.00% ~ 49.25%之间变动,而对于碱基替代情况来讲,优茧蜂亚科各个成员间序列变异位点上颠换 (transversion) 大于转换 (transition);不同的分析和算法所产生的系统发育树都表明目前根据形态定义出的优茧蜂亚科Euphorinae不是一个单系群,而是一个与蚁茧蜂亚科Neoneurinae和高腹茧蜂亚科Cenocoelinae混杂在一起的并系群;在优茧蜂亚科内部,悬茧蜂族Meterorini和食甲茧蜂族Microctonini (排除猎户茧蜂属Orionis) 为单系群,而宽鞘茧蜂族Centistini、大颚茧蜂族Cosmophorini、优茧蜂族Euphorini、瓢虫茧蜂族Dinocampini为并系群;悬茧蜂族Meterorini在优茧蜂亚科Euphorinae内位于基部位置的观点得到部分的支持,同时食甲茧蜂族Microctonini被判定为相对进化的类群.此外对于优茧蜂亚科内各属之间的相互亲缘关系,不同算法所得到的系统发育属的结果不完全一致,这表明优茧蜂亚科内 (属及族) 的系统发育关系还有待于进一步研究.  相似文献   

4.
本研究选取优茧蜂亚科Euphorinae(膜翅目Hymenoptera:茧蜂科Braconidae)的8族19属23种作为内群,茧蜂其它6个亚科的8属8种作外群,首次结合同源核糖体28S rDNA D2基因序列片段和41个形态学特征对该亚科进行了系统发育学研究。利用"圆口类"的内茧蜂亚科Rogadinae、茧蜂亚科Braconinae、矛茧蜂亚科Doryctinae的3个亚科为根,以PAUP*4.0和MrBayes3.0B4软件分别应用最大简约法(MP)和贝叶斯法对优茧蜂亚科的分子数据和分子数据与非分子数据的结合体进行了分析;并以PAUP*4.0对优茧蜂亚科的28S rDNA D2基因序列的片段的碱基组成与碱基替代情况进行了分析。结果表明:优茧蜂亚科的28S rDNA D2基因序列片段的GC%含量在40.00%~49.25%之间变动,而对于碱基替代情况来讲,优茧蜂亚科各个成员间序列变异位点上颠换(transversion)大于转换(transition);不同的分析和算法所产生的系统发育树都表明目前根据形态定义出的优茧蜂亚科Euphorinae不是一个单系群,而是一个与蚁茧蜂亚科Neoneurinae和高腹茧蜂亚科Cenocoelinae混杂在一起的并系群;在优茧蜂亚科内部,悬茧蜂族Meterorini和食甲茧蜂族Microctonini(排除猎户茧蜂属Orionis)为单系群,而宽鞘茧蜂族Centistini、大颚茧蜂族Cosmophorini、优茧蜂族Euphorini、瓢虫茧蜂族Dinocampini为并系群;悬茧蜂族Meterorini在优茧蜂亚科Euphorinae内位于基部位置的观点得到部分的支持,同时食甲茧蜂族Microctonini被判定为相对进化的类群。此外对于优茧蜂亚科内各属之间的相互亲缘关系,不同算法所得到的系统发育属的结果不完全一致,这表明优茧蜂亚科内(属及族)的系统发育关系还有待于进一步研究。  相似文献   

5.
时敏  陈学新  马云  何俊华 《昆虫学报》2007,50(2):153-164
本研究选取矛茧蜂亚科Doryctinae(昆虫纲Insecta:膜翅目Hymenoptera:茧蜂科Braconidae)的6族15属18种做内群,茧蜂科其它7亚科11属11种做外群,首次结合同源核糖体28S rDNA D2基因序列片段和100个形态学和解剖学特征对该亚科进行了系统发育学研究。利用“非圆口类"的小腹茧蜂亚科Microgastrinae为根,以PAUP*4.0和MrBayes 3.0B4软件分别应用最大简约法(MP)和贝叶斯法对矛茧蜂亚科的分子数据和分子数据与非分子数据的结合体进行了运算分析;并以PAUP*4.0对矛茧蜂亚科的28S rDNA D2基因序列片段的碱基组成与碱基替代情况进行了分析。结果表明:矛茧蜂亚科的28S rDNA D2基因序列片段的GC含量在39.33%~48.28%之间变动,而对于碱基替代情况来讲,矛茧蜂亚科各成员间序列变异位点上颠换(transversion)大于转换(transition)。不同的分析算法所产生的系统发育树都表明矛茧蜂亚科是一个界限分明的单系群;在矛茧蜂亚科内,除了吉丁茧蜂族Siragrini为单系群外,其他族(矛茧蜂族Doryctini和方头茧蜂族Hecabolini)都是并系群。对于矛茧蜂亚科内各属之间的相互亲缘关系,不同算法所得的系统发育树的拓扑结构不完全一致,表明矛茧蜂亚科内(属及族)的系统发育关系还有待于进一步研究。  相似文献   

6.
按Mason(1981)分类系统记述分布于福建坳头洪坑的小腹茧蜂亚科1新属1新种,即赵氏茧蜂属Chaoa gen.nov.和黄足赵氏茧蜂Chaoa flavipes sp.nov,模式标本存福建农业大学生物防治研究所.  相似文献   

7.
中国小腹茧蜂亚科一新属记述(膜翅目:茧蜂科)   总被引:3,自引:1,他引:2  
按Mason(1981)的分类系统记述了分布于湖南长沙和广西鹿寨县小腹茧蜂亚科 1新属 1新种 ,即拟麦蛾茧蜂属Pseudovenanidesgen .nov .和湖南拟麦蛾茧蜂Pseudovenanideshunanussp .nov .,模式标本保存于湖南农业大学昆虫标本室。  相似文献   

8.
按Mason(1981)的分类系统了分布于湖南长沙和广西鹿寨县小腹茧蜂亚科1新属1新种,即拟麦蛾茧蜂属Pseudovenanides gen.nov.和湖南拟麦蛾茧蜂Pseudovenanides hunanus sp.nov.模式标本保存于湖南农业大学昆虫标本室。  相似文献   

9.
暗翅拱茧蜂雌性的记述:膜翅目:茧蜂科   总被引:1,自引:0,他引:1  
拱茧蜂属 Fornicia Brullé,1846隶小腹茧蜂亚科Microgasterinae,寄主是刺蛾科幼虫。全世界已知仅20种,是分布在热带的种类。其中分布在新热带区5种、埃及区5种、东洋区10种。在东洋区的10种中,六种在中国有分布,主要分布台湾省。其中暗翅拱茧蜂Fornicia obscuripennis Fahringer,1934 [Ard. Zool., 30A(12): 1—16]仅分布中国台湾省和江苏省,过去仅有雄性形态的记述,缺少雌性标本。著者鉴定广西茧蜂标本时,发现暗翅拱茧蜂雌性个体,现将其形态扼要描述于后。  相似文献   

10.
中国拱茧蜂属一新种(膜翅目,茧蜂科)   总被引:2,自引:2,他引:0  
简述了小腹茧蜂亚科Microgastrinae拱茧蜂属Fornicia Brullé的研究历史、现状和形态特征,描述了该属1新种:阿氏拱茧蜂Fornicia achterbergi sp.nov.并与其近似种做了比较.模式标本存放于福建农林大学益虫研究室.  相似文献   

11.
Abstract.  According to the most recent classifications proposed, the planthopper family Cixiidae comprises three subfamilies, namely Borystheninae, Bothriocerinae and Cixiinae, the latter with 16 tribes. Here we examine morphological characters to present the first phylogenetic reconstructions within Cixiidae derived from a cladistic analysis. We scored 85 characters of the head, thorax, and male and female genitalia for 50 taxa representative of all cixiid subfamilies and tribes and for six outgroup taxa. Analyses were based on maximum parsimony – using both equally weighted and successive weighting procedures – and Bayesian inferences. The monophyly of most currently accepted tribes and subfamilies was investigated through Templeton statistical tests of alternative phylogenetic hypotheses. The cladistic analyses recover the monophyly of Cixiidae, the subfamily Bothriocerinae, and the tribes Pentastirini, Mnemosynini, and Eucarpiini. Successive weighting and Bayesian inference recover the monophyly of the tribe Gelastocephalini, but only Bayesian inference supports the monophyly of Semoniini. The relationships recovered support the groups [Stenophlepsini (Borystheninae + Bothriocerinae)] arising from the tribe Oecleini, and [Andini + Brixiidini + Brixiini (polyphyletic) + Bennini]. Templeton tests reject the alternative hypothesis of a monophyletic condition for the tribe Pintaliini as presently defined.  相似文献   

12.
Wing polymorphism and asymmetric male genitalia are intriguing morphological phenomena occurring in insects. Among Emesinae, or thread‐legged bugs, the tribe Metapterini Stål exhibits these two interesting morphological attributes. Nonetheless, evolutionary interpretations of these phenomena cannot be put forward because phylogenetic hypotheses for Emesinae are lacking. Thread‐legged bugs are easily recognized among assassin bugs due to their elongated and seemingly delicate body. The tribe Metapterini has 28 genera and approximately 280 described species. The only available phylogenetic hypothesis among Emesinae tribes was proposed by Wygodzinsky (1966), and it hypothesized Deliastini Villiers as the sister group of Metapterini, although this hypothesis has never been tested with cladistic approaches. Recent analyses using character sets of genitalia and prolegs suggest that Metapterini might not be monophyletic. In order to test these ideas, we compiled a morphological dataset of 138 characters that includes external morphological characters, detailed features of prolegs and genitalia of both sexes for Metapterini, which were analysed cladistically including 55 terminals, comprising 24 genera (85.7% of the generic diversity), 43 species of Metapterini and 12 outgroups. Metapterini was recovered as paraphyletic by the inclusion of Bergemesa Wygodzinsky, Palacus Dohrn and Stalemesa Wygodzinsky, all currently assigned to Deliastini. Gardena Dohrn (Emesini) was recovered as the sister group of Metapterini + Deliastini as suggested by Wygodzinsky (1966). Based on these results, we synonymize Deliastini syn. n. with Metapterini sensu n. and propose two new genera: Bacata Castro‐Huertas & Forero gen. n. , for three Andean species previously placed in Liaghinella Wygodzinsky, and Valkyriella Castro‐Huertas & Forero gen. n. for Ghilianella borgmeieri Wygodzinsky. Ancestral state reconstruction of wing polymorphism indicates that males and females were fully winged in the ancestor of Metapterini sensu n. with two independent evolutionary transitions to the apterous and brachypterous conditions. The analysis of the symmetry of the male genitalia shows an ancestor with symmetric male genitalia and two independent emergences of asymmetrical male genitalia in Metapterini.  相似文献   

13.
Abstract. This study compares the results of Rozen's cladistic analysis of the larvae of fifteen genera of cleptoparasitic bees in the subfamily Nomadinae with an independent data set of adult characters for the same genera. Adult characters exhibited considerably higher levels of homoplasy and poorer resolution of cladistic relationships, with multiple equally parsimonious cladograms. However, comparison of a Nelson consensus tree based on adult characters with the cladogram based on larval characters reveals three components consistently supported in both analyses (the tribes Epeolini and Ammobatini, and Neopasites + Neolarra) , one component supported only by adult characters (Isepeolus + Protepeolus) , and one terminal component supported only by larval characters (Nomada + Ammobatini), as well as several more inclusive groupings based on larval characters that are difficult to compare with the adult consensus tree because it shows so much less resolution. When adult and larval characters are combined in a single data matrix, the resulting cladogram closely resembles the cladogram based on larval characters alone, although levels of homoplasy are considerably higher than in the larval analysis.
A preliminary analysis of adult characters for thirty-four genera in the Nomadinae also exhibited high levels of homoplasy and very large numbers of equally parsimonious cladograms. Nevertheless, certain consistent monophyletic groupings, most notably the Epeolini and Ammobatini, were also supported in this analysis. The one currently recognized tribe whose monophyly has received no support from any analysis is the Nomadini.
The relevance of these phylogenetic hypotheses to our understanding of host associations and variable features of egg morphology and oviposition behaviour in nomadine bees is briefly discussed.  相似文献   

14.
Abstract. The genera of Corydalinae are redefined, and representative characters are figured for each genus. New character sources, such as mouthparts and internal female genitalia, are investigated, as well as traditional male genitalia and wings. Allohermes is synonymized with Protohermes, Doeringia with Platyneuromus . Intergeneric relationships are hypothesized on the basis of a cladistic analysis. Acanthacorydalis and the New World genera form a monophyletic group, as do Protohermes and Neurhermes , and Neuromus and Neoneuromus. Chloroniella belongs in the Acanthacorydalis - New World lineage, but exact placement is uncertain. A phyletic sequence classification is proposed on the basis of the cladistic analysis.  相似文献   

15.
Zeng J  He JH  Chen XX 《ZooKeys》2011,(120):27-40
The genus Deuterixys Mason, 1981 of the tribe Cotesiini (Hymenopteran, Braconidae, Microgastrinae) is recorded from China for the first time. Two new species, Deuterixys bifossalis Zeng & Chen, sp. n. and Deuterixys curticalcar Zeng & Chen, sp. n., are described and illustrated, and a key to the Old World species of Deuterixys is given. In addition, Wilkinsonellus paramplus Long & van Achterberg, 2003 is recorded from China for the first time and illustrated.  相似文献   

16.
We present the first cladistic analysis focused at the tribal and subfamily level of the orb-weaving spider family Araneidae. The data matrix of 82 characters scored for 57 arancid genera of 6 subfamilies and 19 tribes (and 13 genera from 8 outgroup families) resulted in 16 slightly different, most parsimonious trees. Successive weighting corroborated 62 of the 66 informative nodes on these cladograms; one is recommended as the 'working' araneid phylogcny. The sister group of Araneidae is all other Araneoidea. Araneidae comprises two major clades: the subfamily Araneinae, and the 'argiopoid' clade, which includes all other subfamilies and most tribes (((Gasteracanthinae, Caerostreae), (((Micratheninae, Xylcthreae), Eruyosaccus ), (Eurycorminae, Arciinae)), Cyrlarachninae), ((Argiopinae, Cyrtophorinae), Arachnureae)). Cyrtarachneae and Mastophoreae are united in a new subfamily, Cyr-tarachninae. The spiny orb-weavers alone (Gasteracanthinae and Micratheninae) are not monophyletic. The mimetid subfamily Arciinae and the 'tetragnathid' genus Zygiella are araneids, but .Nephila (and other tetragnathids) are not. On the preferred tree, web decorations (stabilimenta) evolved 9 times within 15 genera, and were lost once. The use of silk to subdue prey evolved once in cribellate and four times in ecribillate orb weavers. Sexual size dimorphism evolved once in nephilines, twice in araneids, and reverted to monomorphism five times. Evolution in other genitalic and somatic characters is also assessed; behavioral and spinneret features arc most consistent (male genitalia, leg and prosomal features least consistent) on the phylogeny.  相似文献   

17.
The chalcosiine zygaenid moths constitute one of the most striking groups within the lower-ditrysian Lepidoptera, with highly diverse mimetic patterns, chemical defence systems, scent organs, copulatory mechanisms, hostplant utilization and diapause biology, plus a very disjunctive biogeographical pattern. In this paper we focus on the genus-level phylogenetics of this subfamily. A cladistic study was performed using 414 morphological and biochemical characters obtained from 411 species belonging to 186 species-groups of 73 genera plus 21 outgroups. Phylogenetic analysis using maximum parsimony leads to the following conclusions: (1) neither the current concept of Zygaenidae nor that of Chalcosiinae is monophyletic; (2) the previously proposed sister-group relationship of Zygaeninae + Chalcosiinae is rejected in favour of the relationship (Zygaeninae + ((Callizygaeninae + Cleoda ) + ( Heteropan + Chalcosiinae))); (3) except for the monobasic Aglaopini, none of the tribes sensu Alberti (1954 ) is monophyletic; (4) chalcosiine synapomorphies include structures of the chemical defence system, scent organs of adults and of the apodemal system of the male genitalia. A paired metathoracic androconial organ and a series of abdominal tergal corematal organs have been discovered, both being new to Lepidoptera. Due to highly homoplastic patterns in copulatory structures and wings that demonstrate significant sexual dimorphism, polymorphism and mimicry, 17 of the 69 'true' chalcosiine genera ( c . 25%) are shown to be either paraphyletic or polyphyletic. The present classification is therefore very misleading. Reductions of various parts of the male genitalia in some groups are accompanied by morphological and functional replacement involving the 8th abdominal segment. A prominent but convergent lock and key mechanism is revealed.  © 2005 The Linnean Society of London, Zoological Journal of the Linnean Society , 2005, 143 , 161–341.  相似文献   

18.
Abstract. The phylogenetic relationships of tribes of the geometrid subfamily Sterrhinae (Lepidoptera) were studied, with special emphasis on finding delimiting characters for the tribe Scopulini. Two cladistic analyses were conducted for fifty‐nine species representing all previously recognized Sterrhinae tribes and covering the geographical range of the subfamily. In the first analysis, twelve putative synapomorphies of Scopulini, taken from the literature, were coded for actual specimens in order to test their ability to support the monophyly of the group. The resulting strict consensus cladogram was totally unresolved. In the second analysis, the twelve characters were combined with additional information from the morphology and ecology of adults and immature stages. Analysis of these ninety‐six characters resulted in a well‐resolved cladogram. The tribes were found to be monophyletic, except Cosymbiini and Rhodostrophiini. There are two main lineages within Sterrhinae: Cosymbiini + Rhodometrini + Timandrini and Rhodostrophiini + Cyllopodini + Sterrhini + Scopulini. Aletini and Problepsini lay within the concept of Scopulini. The association of the included Larentiinae taxa with the Cosymbiini + Rhodometrini + Timandrini lineage questions the monophyly of Sterrhinae. A majority of the recovered synapomorphic characters had been recognized previously, but several new phylogenetically informative characters were found, especially from the thorax. No unique characters diagnosing the tribe Scopulini were found, but many homoplastic synapomorphic features were found which diagnose parts of it. All recognized Sterrhinae genera are assigned tentatively to tribes and problematic cases are discussed.  相似文献   

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