Studies on the Robertsonian chromosomal variation of Mus musculus domesticus (Rodentia, Muridae) in Greece
Studies on the Robertsonian chromosomal variation of Mus musculus domesticus (Rodentia, Muridae) in Greece
复制标题
DOI：
10.1111/j.1095-8312.2005.00451.x
复制
发表时间：
2005-03-01
影响因子：
1.9
通讯作者：
Giagia-Athanasopoulou, EB
中科院分区：
文献类型：
--
作者：
Mitsainas, GP;Giagia-Athanasopoulou, EB
对来自44个地区的282个家鼠标本进行了核型分析，以更好地了解已知存在于希腊的罗伯逊（Rb）变异。我们认为，Rb系统存在于伯罗奔尼索斯，希腊南部，分布在一个地区，大大大于以前已知的。它至少由3个Rb小种组成，2n = 30、2n = 24和2n = 28，其中2n = 28的小种为本文首次报道，携带纯合的Rb（3.6）、Rb（8.12）、Rb（10.14）、Rb（13.15）、Rb（9.16）和Rb（11.17）。在这个Rb系统中变异的其他例子包括具有2n的个体。2n = 30和2n = 24的Rb小种间杂种。在伯罗奔尼索斯南部，Rb（10.14）被发现在纯合或杂合状态（2n 38或39）。讨论了伯罗奔尼索斯Rb种群之间的关系，并提出了它们的演化假说。Rb的变化也记录在两个新的位置，东部Sterea Ellas（2n = 28和29）和一个在伊皮罗斯，希腊西北部（2n = 38）。这些发现证实了在这两个地区存在两个独立的Rb系统。此外，在所调查的一些岛屿中，Rb变异仅在基西拉岛发现，Rb（10.14）处于杂合状态（2n = 39）。最后，在13个地点研究的51只动物中发现了典型的全近端着丝粒染色体核型（2n = 40）。(c)2005年，伦敦林奈学会。
The karyotype of the house mouse, Mus musculus domesticus, was examined in 282 specimens from 44 localities, in an effort to gain better understanding of the Robertsonian (Rb) variation known to exist in Greece. We consider that an Rb system exists in Peloponnisos, southern Greece, distributed in an area that is substantially larger than previously known. It consists of at least three Rb races with 2n = 30, 2n = 24 and 2n = 28, respectively, the last being reported for the first time in this paper and carrying Rb(3.6), Rb(8.12), Rb(10.14), Rb(13.15), Rb(9.16) and Rb(11.17) in a homozygous state. Additional instances of variation in this Rb system include individuals with 2n. = 31 and 32 of variable Rb constitution and hybrids between the Rb races with 2n 30 and 2n = 24. In southern Peloponnisos, Rb(10.14) was found in either a homozygous or a heterozygous state (2n 38 or 39). The relationships among the Rb populations of Peloponnisos are discussed and hypotheses for their evolution are proposed. Rb variation was also recorded in two new locations of eastern Sterea Ellas (2n = 28 and 29) and one in Ipiros, north-west Greece (2n = 38). These findings corroborate the existence of two separate Rb systems in those two areas. Moreover, among a number of islands surveyed, Rb variation was only found in Kythira island, with Rb(10.14) in a heterozygous state (2n = 39). Finally, the typical all-acrocentric karyotype (2n = 40) was found in 51 of the animals studied from 13 localities. (c) 2005 The Linnean Society of London.