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Characteristics of Mitotic Chromosomes of Rapana venosa (Valenciennes, 1846) (Gastropoda, Muricidae)
Russian Journal of Biological Invasions Pub Date : 2020-04-01 , DOI: 10.1134/s2075111720010099
A. V. Pirkova

Abstract

Predatory gastropod mollusk Rapana venosa (Valenciennes, 1846) was brought from the Sea of Japan to the Black Sea; it has spread in lots of areas of the World Ocean. The article presents a description of the karyotype in embryonic cells. There are 70 chromosomes in rapa whelk karyotype belonging to the following three morphological groups: metacentric (32), submetacentric (36), and subtelocentric (2) chromosomes, which are from 1.499 ± 0.019 to 5.575 ± 0.125 μm in length. The length of the haploid chromosome set is 100.783 μm. Multiple type of crossing provides high genetic diversity of R. venosa that explains the adaptive capabilities of the species reproductive strategy and its eurybioticity.


中文翻译:

Rapana venosa(Valenciennes,1846)(Gastropoda,Muricidae)有丝分裂染色体的特征

摘要

掠食性腹足动物软体动物Rapana venosa(Valenciennes,1846)从日本海带到黑海。它已经扩散到世界海洋的许多地区。本文介绍了胚胎细胞中的核型。rapa whelk核型中有70条染色体,属于以下三个形态学组:亚中心(32),亚亚中心(36)和亚亚中心(2)染色体,其长度为1.499±0.019至5.575±0.125μm。单倍体染色体组的长度为100.783μm。多种类型的杂交提供了R. venosa的高遗传多样性,这说明了该物种繁殖策略的适应能力及其eurybioticality。
更新日期:2020-04-01
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