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首页> 外文期刊>Folia Biologica: A Quarterly Journal of Biological Research >The First Cytogenetic Report on Laena reitteri Weise, 1877(Coleoptera, Tenebrionidae, Lagriinae)with Notes on Karyotypes of Darkling Beetles
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The First Cytogenetic Report on Laena reitteri Weise, 1877(Coleoptera, Tenebrionidae, Lagriinae)with Notes on Karyotypes of Darkling Beetles

机译:1877年莱纳红itter的第一个细胞遗传学报告(鞘翅目,天蛾科,黄La科),并记载了黑Dark甲的核型。

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The karyotype structure of Laena reitteri is described for the first time. The chromosome number 2n=18+1-3B and meioformula n%=8+Xyp+1-3B deviates from the modal tenebrionid number. The karyotype exhibits low variation in morphology and length. The diploid set consists of four long (subtelocentric and acrocentric), twelve medium-sized acrocentric autosomes and sex heterochromosomes Xy. The X chromosome is submeta-centric, while the y is acrocentric and the smallest element of the set. On mitotic and meiotic plates 1-3 small additional elements are also visible, and probably represent B-chromosomes.The NORs are very active at mitotic prophase and early meiotic stages.
机译:首次描述了莱纳ena的核型结构。染色体编号2n = 18 + 1-3B,而配子体n%= 8 + Xyp + 1-3B偏离模态三叶虫编号。核型表现出低的形态和长度变化。二倍体组由四个长的(亚远心和近端中心),十二个中等大小的近端常染色体和性异染色体Xy组成。 X染色体以亚meta为中心,而y染色体以acrocentric为中心,是集合中最小的元素。在有丝分裂和减数分裂平板上,还可以看到1-3个小的附加元素,并且可能代表B染色体.NOR在有丝分裂的前期和减数分裂早期非常活跃。

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