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1.
2.
A search for the genes interacting with the Merlin tumor suppressor gene revealed a Merlin-porcupine interaction during wing morphogenesis. Ectopic expression of the porcupine gene in the wing imaginal disk reduced the adult wing, while addition of an UAS construct with a full-length or truncated copy of the Merlin gene partly restored the wing phenotype. The highest restoration level was observed upon adding the fragments coding for the C end of the Merlin protein. In addition, the porcupine gene was shown to mediate the wingless gene autoregulation, which occurs at two ontogenetic stages, segmentation during embryo development and determination of the wg expression band at the boundary between the dorsal and ventral compartments of the wing imaginal disk.  相似文献   

3.
Five new species of the genus Telenomus, subgenus Telenomus [Telenomus (T.) decoratus Kononova, sp. n., T. (T.) erectus Kononova, sp. n., T. (T.) notus Kononova, sp. n., T. (T.) clarus Kononova, sp. n., and T. (T.) gratus Kononova, sp. n.], collected from the Ukraine, Bulgaria, and Russia (Kunashir Island), are described for the first time. T. (T.) decoratus differs from the species with the mesoscutum bearing parapsidal furrows in the oblong tergite II with alveolate sculpture. T. (T.) erectus is closely related to T. (T.) lachesis Kozlov et Kononova and can be distinguished by the longer thorax and abdominal tergite I with longitudinal rugae. T. (T.) notus differs from the similar T. (T.) erectus in the sculpture and shape of the abdomen and coloration of the legs. T. (T.) clarus differs from T. (T.) lineolatus Kozlov in the sculpture of the frontal depression: granulate in T. (T.) clarus and smooth and lustrous in T. (T.) lineolatus. T. (T.) gratus is similar to T. (T.) atropos; its specific features are the head much wider than long and the smooth and lustrous tergite I.  相似文献   

4.
The myrmeoleontoid Neuroptera fauna of Kyrgyzstan comprises 34 species-group taxa, among which 23 are recorded from the republic for the first time. Epacanthaclisis alaica Krivokhatsky, 1998 is known only from the holotype collected in the Alai Mt. Range; Kirghizoleon cubitalis Krivokhatsky et Zakharenko, 1994 is known from Kyrgyzstan and from the Hissar Mt. country in Tajikistan; and Mesonemurus vartianorum Hölzel, 1972 is distributed from the Tien Shan to Afghanistan. 26 species are common in Kyrgyzstan and are fairly evenly distributed over its territory. New synonymies are established: Macronemurus persicus (Navás, 1915) = Barreja persica Navás, 1915, = Barreja amoena Hölzel, 1972, syn. n.; Myrmecaelurus acerbus (Walker) = Myrmeleon acerbus Walker, 1853; = Myrmecaelurus varians Navás, 1913, syn. n.; = Myrmecaelurus aequans Navás, 1913, syn. n.; = Myrmecaelurus nematicus Navás, 1932, syn. n. The polymorphous structure of the widely variable Macronemurus persicus is shown, and three its color morphs are distinguished: Macronemurus persicus var. persica (Navás, 1915), var. graciosa var. n., and var. amoena (Hölzel, 1972). Data on the antlion and owlfly fauna of some other Palaearctic countries are supplemented.  相似文献   

5.
Five new species of the subgenus Xanthempis Bezzi are described from the Caucasus: Empis (Xanthempis) annae sp. n. (Russia: Krasnodar Territory), E. (X.) grichanovi sp. n. (Russia: Krasnodar Territory; Georgia), E. (X.) pseudoconcolor sp. n. (Russia: Krasnodar and Stavropol territories; Georgia: Abkhazia), E. (X.) teberdaensis sp. n. (Russia: Karachay-Cherkessia), and E. (X.) zamotajlovi sp. n. (Russia: Krasnodar Territory and Adygea). The females of E. (X.) alanica Shamshev and E. (X.) kovalevi Shamshev are described for the first time. New data on the distribution of some previously described species are reported. The geographical distribution of Xanthempis is discussed. A key to Xanthempis species from the Caucasus is compiled.  相似文献   

6.
7.
An illustrated catalogue is given of the family Ratardidae in the world fauna which includes 10 species from 3 genera. A new species, Callosiope elenae Yakovlev sp. n., is described from Lampang Province, Thailand. Externally, the new species differs well from the type species of the genus, C. banghaasi. The fore wing of C. elenae sp. n. has a pattern of alternating wide black bands against pure white background (in C. banghaasi, the fore wing is strongly darkened, without bands). The hind wing of C. elenae sp. n. shows a pattern of large dropshaped black smears at the wing edge and a more or less expressed spotted pattern in the discal and postdiscal areas (in C. banghaasi, the hind wing is completely black, with no pattern). A new synonymy: Ratarda marmorata Moore, 1879 = Ratarda guttifera Hering, 1925 syn. n. and a new status: Ratarda mora javanica Roepke, 1937 stat. n., are established. Ratarda excellens (Strand, 1917) is recorded in the fauna of Thailand for the first time.  相似文献   

8.
As a result of the successful acclimatization in the Azov basin, haarder Liza haematocheila has become a commercial species and is currently among the main commercial items. Its reproduction in the new range takes place in environmental conditions strongly differing in the salinity level (3–24‰), which determined its population differentiation. The extent and structure of the phenetic diversity of L. haematocheila from the Sea of Azov basin was assessed and elucidated, using a phenetic approach in studies of natural populations and on the basis of studying morphological characters. Molochnyi Liman, Sivash, and marine subpopulations of L. haematocheila were distinguished.  相似文献   

9.
Two weevil species, Rhinoncus autumnalis Korotyaev, 1980 and Orchestes medvedevi (Korotyaev, 1995), comb. n. (from Rhynchaenus), both described from Mongolia, are recorded from Russia (Buryatia) for the first time. A key to five Orchestes species associated with elms in Eastern Siberia, the Russian Far East, and Mongolia is provided. Aizobius sedi (Germar, 1818) is recorded for the first time from Eastern Siberia based on the recent findings in Buryatia and on older collections from Tuva where it is associated with Orostachys spinosa (L.) C.A. Mey. (Crassulaceae); it is also recorded for the first time from Kyrgyzstan and Mongolia. Magdalis (Aika) margaritae Barrios, 1984, native of Mongolia, Northern China and the south of the Russian Far East, is recorded from Buryatia. Lixus (Broconius) korotyaevi Ter-Minassian, 1989, formerly known in Russia only from southern Tuva, is recorded from Buryatia where it was collected on Suaeda ?prostrata Pallas, which is the first known host of this species. Rhamphus ?oxyacanthae (Marsham, 1802) is reported from Buryatia where it was collected from Cotoneaster melanocarpa, and from Mongolia.  相似文献   

10.
Endelus (Kubaniellus) indicus sp. n. from India, E. (K.) lao sp. n. and E. (K.) khnzoriani sp. n. from Laos, E. (s. str.) sausai sp. n. from China, and E. (s. str.) dembickyi sp. n. from India are described, the two latter species are included in the Endelus bicarinatus Théry, 1932 species-group recently established by the author. E. collinus Obenberger, 1922 is included in this group; lectotype of this species is designated. Keys to species of the subgenus Kubaniellus and of the E. collinus group are provided. E. (K.) kareni Kalashian is for the first time recorded for Shaanxi Prov., E. pacholatkoi Kalashian, E. smaragdinus Desc. et Vill., and E collinus Obenb., for Laos (the latter species, also for Myanmar).  相似文献   

11.
Escherichia coli strains from swine origin, either susceptible or resistant to colistin, were grown under planktonic and biofilm cultures. After which, they were treated with antibacterial agents including nisin and enterocin DD14 bacteriocins, colistin and their combinations. Importantly, the combination of colistin, enterocin DD14 and nisin eradicated the planktonic and biofilm cultures of E. coli CIP54127 and the E. coli strains with colistin-resistance phenotype such as E. coli 184 (mcr-1 +) and E. coli 289 (mcr-1 ?), suggesting therefore that bacteriocins from lactic acid bacteria could be used as agents with antibiotic augmentation capability.  相似文献   

12.
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) oviposits in ripening fruit, larvae render crops unmarketable, and significant economic losses can occur. Biological control research has focused on individual natural enemy species against immature D. suzukii. Here we combine two predators and an entomopathogenic nematode, expecting species complementarity and increased control of D. suzukii. In strawberries, Orius insidiosus (Say) (Hemiptera: Anthocoridae) plus Heterorhabditis bacteriophora Poinar (Rhabditida: Heterorhabditidae) resulted in fewest D. suzukii (81% reduction), and in blueberries, results were similar (60% reduction), although H. bacteriophora was not as effective as in strawberries, which was likely due to drier substrate conditions. There was neither strong complementarity nor interference between predators, O. insidiosus and Dalotia coriaria Kraatz (Coleoptera: Staphylinidae). Inclusion of O. insidiosus resulted in 50% fewer D. suzukii than combinations without O. insidiosus. Control of D. suzukii can be improved with multiple natural enemies, and combinations of O. insidiosus with other agents (parasitoids, fungal entomopathogens) should be tested.  相似文献   

13.
Originally described as a monotypical genus with unclear taxonomic position from Sudan, Meroctenus Gemminger et Harold, 1868 is treated as a polytypical genus of the Selenophori genus group with two subgenera: Meroctenus s. str. and Xenodochus Andrewes, 1941, stat. n. (the latter was previously considered a distinct genus). Within Meroctenus, two species are recognized: M. (Meroctenus) crenulatus Chaudoir, 1843 (type species) and M. (M.) mediocris (Andrewes, 1936), comb, n., transferred to Meroctenus s. str. from Xenodochus. A new subspecies M. (M.) crenulatus orientalis subsp. n. is described from Pakistan. Diagnoses of the genus Meroctenus in new interpretation as well as of its two subgenera are discussed, and a taxonomic review of the subgenus Meroctenus s. str. with a key to the species and subspecies is provided. The following synonymy is proposed: Meroctenus Gemminger et Harold, 1868 = Paregaploa Müller, 1947, syn. n.; Meroctenus crenulatus (Chaudoir, 1843) = Egaploa (Paregaploa) conviva Müller, 1947, syn. n. Lectotypes are designated for Ctenomerus crenulatus Chaudoir, 1843 and Xenodus mediocris Andrewes, 1936.  相似文献   

14.
The genus Phaeophilacris Walk. is divided into two subgenera: Phaeophilacris s. str. and Speluncacris Sjöst. The latter name, originally proposed as a generic one and synonymized with Phaeophilacris s. l., is restored as a subgeneric name. The former genera Opilionacris Sjöst. and Cavernacris Sjöst. previously synonymized with Phaeophilacris s. l. are considered as synonyms of the subgenus Speluncacris. Four new species (Ph. (S.) malawi sp. n., Ph. (S.) boldyrevi sp. n., Ph. (S.) dmitrievi sp. n., and Ph. (S.) gigantea sp. n.) and three new subspecies (Ph. (S.) bredoides mangochi subsp. n., Ph. (S.) bredoides mutinondo subsp. n., and Ph. (Ph.) townsendi aethiopica subsp. n.) of the genus Phaeophilacris are described.  相似文献   

15.
New caddisflies, reculid and eoblattid insects from the Mesozoic of Asia are described. Caddisflies of the families Philopotamidae (Mesoviatrix paradoxa gen. et sp. nov. and Kempia piotri gen. et sp. nov.) and Polycentropodidae (Polylongevus eskovi gen. et sp. nov.) from the Upper Jurassic–Lower Cretaceous of the Kempendyai locality in Yakutia are described. A short review and comparison of fossil members in these families are provided. New Gryllones insects, Shurabia tanga sp. nov., Sauk batkenicus gen. et sp. nov. from the Sauk Tan’ga locality (Lower Jurassic of Kyrgyzstan), Say kirgizicus gen. et sp. nov. from the Shurab III locality (Reculida: Geinitziidae; Lower or Middle Jurassic of Kyrgyzstan) Griphopteron iya sp. nov. (Eoblattida: Blattogryllidae) from Iya locality (Middle Jurassic of Russia) are described.  相似文献   

16.
The interaction of the mutant genes wellhaarig (we) and waved alopecia (wal) in mice was earlier demonstrated in our laboratory. The we gene significantly accelerates the appearance of alopecia in double we/wewal/wal homozygotes as compared to that in single +/+wal/wal homozygotes. It has been found in this work that the mutant gene angora-Y (Fgf5 go-Y ) weakens the effect of interaction of the we and wal genes. The first signs of alopecia appear in mice of the we/wewal/wal genotype at the age of 14 days, in triple Fgf5 go-Y /Fgf5 go-Y we/wewal/wal homozygotes alopecia is observed seven days later, i. e., in 21-day-old animals. The progression of alopecia in triple homozygotes is expressed to a lesser degree than in double +/+we/wewal/wal homozygotes. A single dose of the Fgf5 go-Y gene also decreases the effect of interaction of the we and wal genes, but less than a double dose of this gene. The first signs of alopecia in mice of the +/Fgf5 go-Y we/wewal/wal genotype appear only three days later than in double +/+we/wewal/wal homozygotes. The data obtained demonstrate that the Fgf5 go-Y gene is a powerful modifier of mutant genes determining the process of alopecia.  相似文献   

17.
Two new species of hymenolepidid cestodes belonging to the genus Armadolepis Spassky, 1954 are described from dormice (Gliridae) from the southern East European Plain and the northwestern Caucasus, Russia. Armadolepis (Bremserilepis) longisoma n. sp., with a rudimentary, unarmed rostellar apparatus is described from the fat dormouse Glis glis (Linnaeus) from the Republic of Adygeya, Russia. Additionally, A. (Armadolepis) dryomi n. sp., characterised by a well-developed rostellar apparatus and armed rhynchus is described from the forest dormouse Dryomys nitedula Pallas from Rostov Oblast’, Russia. Armadolepis (Bremserilepis) longisoma n. sp. differs from A. (Bremserilepis) myoxi (Rudolphi, 1819) in having a substantially longer strobila and cirrus-sac, wider scolex and ovary and larger rostellar pouch and testes. Armadolepis (Armadolepis) dryomi n. sp. is distinguishable from A. (Armadolepis) spasskii Tenora & Baru?, 1958, A. (Armadolepis) jeanbaeri Makarikov, 2017 and A. (Armadolepis) tenorai Makarikov, 2017 in having a substantially longer and wider strobila, and larger rostellar pouch and cirrus-sac. Furthermore, A. dryomi n. sp. can be distinguished from its congeners by the number and size of rostellar hooks and the arrangement of the testes. Phylogenetic affinities of Armadolepis were studied for the first time using partial sequences of the nuclear ribosomal 28S DNA gene. Phylogenetic analysis strongly supported the status of Armadolepis as a separate genus belonging to the “Rodentolepis clade”.  相似文献   

18.
Chrysolina (Semenowia) chalcea (Weise, 1889), Ch. (Pezocrosita) cyanopurpurea (Ballion, 1878), and Ch. (Chrysocrosita) fuyunica Chen, 1961 are redescribed. A male (topotype) of Ch. cyanopurpurea was examined for the first time. Ch. belousovi Lopatin, 2000 is a new junior synonym of Ch. cyanopurpurea; Ch. bienkowskii Lopatin, 2000 is a new junior synonym of Ch. chalcea. The taxonomic position of all the taxa mentioned is discussed.  相似文献   

19.
It is rather difficult to construct a system of gray voles of the tribe Microtini by a set of morphological and karyological characters because form generation is mosaic at these organization levels. The sequence of the mitochondrial cytochrome b gene was used to study the phylogenetic relationships and taxonomic position of the Central Asian subgenus Blanfordimys. Afghan vole Microtus (Blanfordimys) afghanus and Bucharian vole M. (Blanfordimys) bucharensis clustered with Pamir vole M. (Neodon) juldaschi, which is conventionally assigned to another subgenus. The last two species proved to be significantly closer to each other than either of them was to M. (Blanfordimys) afghanus, which disagrees with the monophyletic origin accepted for Blanfordimys. The genetic distances between the species of the subgenus Blanfordmys and M. juldaschi were comparable with the distances between the sister subgenera Microtus s. str. and Sumeriomys or Pallasiinus and Alexandromys and with the basal divergence of supraspecific clades in the subgenus Terricola. It was assumed that a special Central Asian group of species exists within the tribe Microtini and includes species of the subgenus Blanfordimys and M. juldaschi and that the subgenera Neodon and Blanfordimys should be revised.  相似文献   

20.
Six new natural compounds were isolated from two Far Eastern starfish species, Henricia aspera and H. tumida, collected in the Sea of Okhotsk. Two new glycosylated steroid polyols were obtained from H. aspera: asperoside A and asperoside B, which were shown to be (20R,24R, 25S)-3-O-(2,3-di-O-methyl-β -D-xylopyranosyl)-24-methyl-5α-cholest-4-ene-3β, 6β,8,15α,16β,26-hexaol and (20R, 24R,25S,22E)-3-O-(2,4-di-O-methyl-β-D-xylopyranosyl)-24-methyl-5α-cholest-22-ene-3β,4β,6β,8,15α,26-hexaol, respectively. Two other glycosylated polyols, tumidoside A, with the structure elucidated as (20R, 22E)-3-O-(2,4-di-O-methyl-β -D-xylopyranosyl)-26,27-dinor-24-methyl-5α-cholest-22-ene-3β,4β,6β,8,15α,25-hexaol, and tumidoside B, whose structure was elucidated as (20R,24S)-3-O-(2,3-di-O-methyl-β-D-xylopyranosyl)-5α-cholestan-3β,4β,6β,8,15α,24-hexaol, were isolated from the two starfish species. (20R, 24S)-5α-Cholestan-3β,6β,15α,24-tetraol and (20R, 24S)-5α-cholestan-3β,6β,8,15α,24-pentaol were identified only in H. tumida. The known monoglycosides henricioside H1 and laeviuscolosides H and G were also identified in both species.  相似文献   

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