啮目昆虫（昆虫纲：啮虫目）中的自动孤雌生殖和无融合生殖单性生殖
Automictic and apomictic parthenogenesis in psocids (Insecta: Psocoptera).
作者信息
Nokkala Seppo, Golub Natalia V
机构信息
Laboratory of Genetics, Department of Biology, University of Turku, FIN-20014, Turku, Finland.
出版信息
Folia Biol (Krakow). 2006;54(1-2):19-22. doi: 10.3409/173491606777919193.
Karyotypes and meiosis patterns in three obligatory thelytokous Psocoptera species have been studied for the first time. Females of Aaroniella badonneli (Danks) display 9 chiasmatic bivalents in oocyte metaphase I (2n = 18), hence meiosis is of the automictic type. Females of Ectopsocus meridionalis Ribaga and Valenzuela sp. display 3n = 27, and 27 univalent chromosomes are present in oocyte metaphase I. Thus, meiosis in these species is of the apomictic type.
首次对三种专性产雌孤雌生殖的啮目昆虫的核型和减数分裂模式进行了研究。巴多内氏阿罗啮（Danks）的雌性在卵母细胞减数第一次分裂中期显示9个交叉二价体（2n = 18），因此减数分裂为自动融合型。南方外啮（Ribaga）和巴伦苏埃拉属（Valenzuela sp.）的雌性显示3n = 27，且在卵母细胞减数第一次分裂中期存在27条单价染色体。因此，这些物种的减数分裂为无融合生殖型。
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