New karyotypic data for Asian rodents (Rodentia, Muridae) with the first report of B-chromosomes in the genus Mus
New karyotypic data for Asian rodents (Rodentia, Muridae) with the first report of B-chromosomes in the genus Mus
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DOI：
10.1111/j.1469-7998.2009.00588.x
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发表时间：
2009-09-01
影响因子：
2
通讯作者：
Dobigny, G.
中科院分区：
文献类型：
--
作者：
Badenhorst, D.;Herbreteau, V.;Dobigny, G.
作为该地区流行病学调查的一部分，使用传统的细胞遗传学技术对在泰国各地收集的 18 种啮齿类动物的核型进行了分析。目的是使用更新的分类框架重新评估泰国啮齿动物基于核型的诊断的可靠性。检查的物种包括 Menetes berdmorei (Sciuridae)、Mus caroli、Mus cervicolor 和 Mus Cookii、Hapalomys delacouri、Chiropodomys gliroides，以及 Rattini 部落大多数谱系的几个代表，即 Rattus exulans、Rattus Losa、Rattus tanezumi、Leopdamys edwardsi、Leopdamys neilli、Maxomys surifer、Niviventer fulvescens、Berylmys berdmorei、Berylmys Bowersi、Bandicota indica 和 Bandicota savilei（鼠科）。首次描述了其中几种的 G 和/或 C 带核型，即 B. savilei、L. edwardsi、M. surifer、B. berdmorei、B. Bowersi、N. fulvescens 和 H. delacouri。尽管与现有数据基本一致，但我们对染色体形态的研究结果与发表的 L. edwardsi、M. surifer、B. savilei 和两种铍属物种 B. berdmorei 和 B. Bowersi 的结果略有不同。此外，我们还记录了铍属、板迪科塔属和象征性鼠属中 B 染色体的新发现。重要的是，在我们研究的大多数属中几乎无法鉴定出物种特异性的染色体特征，并且与之前的说法相反，核型对于诊断这些亚洲鼠类物种的有用性似乎是有限的。
Karyotypes of 18 rodent species collected in various localities in Thailand were analysed as part of an epidemiological survey of the region using conventional cytogenetic techniques. The aim was to re-assess the reliability of karyotype-based diagnoses of Thai rodents using an updated taxonomic framework. The species examined include Menetes berdmorei (Sciuridae), Mus caroli, Mus cervicolor and Mus cookii, Hapalomys delacouri, Chiropodomys gliroides, as well as several representatives of most of the lineages of the Rattini tribe, that is Rattus exulans, Rattus losea, Rattus tanezumi, Leopoldamys edwardsi, Leopoldamys neilli, Maxomys surifer, Niviventer fulvescens, Berylmys berdmorei, Berylmys bowersi, Bandicota indica and Bandicota savilei (Muridae). The first descriptions of G- and/or C-banding karyotypes are provided for several of these, that is, B. savilei, L. edwardsi, M. surifer, B. berdmorei, B. bowersi, N. fulvescens and H. delacouri. Although largely in agreement with available data, our findings on chromosome morphology differ slightly from those published for L. edwardsi, M. surifer, B. savilei and the two Berylmys species, B. berdmorei and B. bowersi. In addition, we document the novel finding of B-chromosomes in the genera Berylmys, Bandicota and the emblematic Mus. Importantly, few species-specific chromosomal characteristic could be identified within most of the genera investigated in our study and, in contrast to previous claims, the usefulness of karyotypes for diagnosing these Asian murid species appears to be limited.