The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)

Various genetic features of the hitman strain of the widespread parasitoid of Drosophilidae (Diptera), Pachycrepoideus vindemmiae (Rondani, 1875) (Pteromalidae, Pachyneurinae) were studied. This strain was established and is maintained at the Institute of Cytology and Genetics of the Siberian Branch...

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Main Authors: V. E. Gokhman, A. S. Ryabinin, R. A. Bykov, Yu. Yu. Ilinsky
Format: Article
Language:English
Published: Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders 2025-03-01
Series:Вавиловский журнал генетики и селекции
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Online Access:https://vavilov.elpub.ru/jour/article/view/4481
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author V. E. Gokhman
A. S. Ryabinin
R. A. Bykov
Yu. Yu. Ilinsky
author_facet V. E. Gokhman
A. S. Ryabinin
R. A. Bykov
Yu. Yu. Ilinsky
author_sort V. E. Gokhman
collection DOAJ
description Various genetic features of the hitman strain of the widespread parasitoid of Drosophilidae (Diptera), Pachycrepoideus vindemmiae (Rondani, 1875) (Pteromalidae, Pachyneurinae) were studied. This strain was established and is maintained at the Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk, Russia). An analysis of air-dried chromosome preparations from prepupae of this parasitoid showed that it has n = 4 and 2n = 8 in males and females, respectively, which is the lowest known chromosome number in the family Pteromalidae. All chromosomes in the karyotype of this species are metacentric. The first and second chromosomes are of similar size, the remaining ones are substantially shorter. The same results were obtained for an additional strain of this species kept at the Moscow State University (Moscow, Russia). A comparison of the DNA sequence of the barcoding region of the mitochondrial cytochrome c oxidase (COI) gene of the hitman strain of P. vindemmiae with those available from the GenBank and BoLD databases demonstrated that this strain clustered together with conspecifics originating from China, Turkey and Italy. Despite certain endosymbionts being previously reported for the genus Pachycrepoideus Ashmead, 1904 as well as for P. vindemmiae itself, the hitman strain turned out to be free of endosymbiotic bacteria in the genera Arsenophonus Gherna et al., 1991, Cardinium Zchori-Fein et al., 2004, Rickettsia da Rocha-Lima, 1916, Spiroplasma Saglio et al., 1973 and Wolbachia Hertig, 1936. The above-mentioned results improve our knowledge of various genetic features of parasitoids of the family Pteromalidae and those of P. vindemmiae in particular.
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publisher Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
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spelling doaj-art-32451ff1abc4489f9d85999033fabe872025-08-20T03:44:11ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592025-03-0129110811210.18699/vjgb-25-121547The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)V. E. Gokhman0A. S. Ryabinin1R. A. Bykov2Yu. Yu. Ilinsky3Russian Entomological SocietyInstitute of Cytology and Genetics of the Siberian Branch of the Russian Academy of SciencesInstitute of Cytology and Genetics of the Siberian Branch of the Russian Academy of SciencesInstitute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences; Center for Immunology and Cell Biology, Immanuel Kant Baltic Federal UniversityVarious genetic features of the hitman strain of the widespread parasitoid of Drosophilidae (Diptera), Pachycrepoideus vindemmiae (Rondani, 1875) (Pteromalidae, Pachyneurinae) were studied. This strain was established and is maintained at the Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk, Russia). An analysis of air-dried chromosome preparations from prepupae of this parasitoid showed that it has n = 4 and 2n = 8 in males and females, respectively, which is the lowest known chromosome number in the family Pteromalidae. All chromosomes in the karyotype of this species are metacentric. The first and second chromosomes are of similar size, the remaining ones are substantially shorter. The same results were obtained for an additional strain of this species kept at the Moscow State University (Moscow, Russia). A comparison of the DNA sequence of the barcoding region of the mitochondrial cytochrome c oxidase (COI) gene of the hitman strain of P. vindemmiae with those available from the GenBank and BoLD databases demonstrated that this strain clustered together with conspecifics originating from China, Turkey and Italy. Despite certain endosymbionts being previously reported for the genus Pachycrepoideus Ashmead, 1904 as well as for P. vindemmiae itself, the hitman strain turned out to be free of endosymbiotic bacteria in the genera Arsenophonus Gherna et al., 1991, Cardinium Zchori-Fein et al., 2004, Rickettsia da Rocha-Lima, 1916, Spiroplasma Saglio et al., 1973 and Wolbachia Hertig, 1936. The above-mentioned results improve our knowledge of various genetic features of parasitoids of the family Pteromalidae and those of P. vindemmiae in particular.https://vavilov.elpub.ru/jour/article/view/4481hymenopterapteromalidaeparasitoidschromosomeskaryotypedna barcodingendosymbionts
spellingShingle V. E. Gokhman
A. S. Ryabinin
R. A. Bykov
Yu. Yu. Ilinsky
The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
Вавиловский журнал генетики и селекции
hymenoptera
pteromalidae
parasitoids
chromosomes
karyotype
dna barcoding
endosymbionts
title The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
title_full The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
title_fullStr The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
title_full_unstemmed The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
title_short The lowest chromosome number in the family Pteromalidae (Hymenoptera: Chalcidoidea): the karyotype and other genetic features of <i>Pachycrepoideus vindemmiae</i> (Rondani, 1875)
title_sort lowest chromosome number in the family pteromalidae hymenoptera chalcidoidea the karyotype and other genetic features of i pachycrepoideus vindemmiae i rondani 1875
topic hymenoptera
pteromalidae
parasitoids
chromosomes
karyotype
dna barcoding
endosymbionts
url https://vavilov.elpub.ru/jour/article/view/4481
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