Mitochondrial DNA in the hybrid zone between Mus musculus musculus and Mus musculus domesticus:: a comparison of two transects
Mitochondrial DNA in the hybrid zone between Mus musculus musculus and Mus musculus domesticus:: a comparison of two transects
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DOI：
10.1111/j.1095-8312.2005.00440.x
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发表时间：
2005-03-01
影响因子：
1.9
通讯作者：
Piálek, J
中科院分区：
文献类型：
--
作者：
Bozíková, E;Munclinger, P;Piálek, J
本文研究了小家鼠与小家鼠接触区mtDNA的渐渗现象。in.在两个独立的样带在捷克共和国和巴伐利亚州，德国的大鲵。共1270只小鼠从98个地点在捷克样带和456只小鼠从41个地点在巴伐利亚样带进行了检查存在或不存在的BamHI限制性位点的mt-Nd 1基因。利用这个简单的mtDNA标记，属于M。in.可以明确地将M. tagicus谱系（存在限制性位点）与属于M. tagicus的谱系区分开来。M. musculus谱系（缺乏限制位点）。比较了线粒体DNA、三种常染色体等位酶和X染色体的渐渗程度。X标记的渐渗比等位酶和mtDNA的渐渗更有限。在捷克样带中，线粒体DNA渐变群的中心相对于X染色体渐变群向西移动了约3.6km，M. in. musculus到M. in.阿提库斯有趣的是，在巴伐利亚样带中，线粒体DNA渐变群的中心相对于X染色体渐变群向东移动了约10.9km，M. in. M. M. M. M.肌，相反的方向观察到的捷克样带。(c)2005年，伦敦林奈学会。
We studied mtDNA introgression across the contact zone between Mus musculus musculus and M. in. domesticus in two independent transects in the Czech Republic and Bavaria, Germany. A total of 1270 mice from 98 localities in the Czech transect and 456 mice from 41 localities in the Bavarian transect were examined for presence or absence of a BamHI restriction site in the mt-Nd1 gene. Using this simple mtDNA marker, variants that belonged to the M. in. domesticus lineage (presence of restriction site) could be unequivocally distinguished from those belonging to the M. m. musculus lineage (absence of restriction site). The extent of introgression of mtDNA, three autosomal allozymes and the X chromosome was compared. The introgression of X markers was more limited than was that of the allozymes and mtDNA. In the Czech transect, the centre for the mtDNA cline was shifted about 3.6 km to the west relative to the X chromosome cline, with asymmetric introgression from M. in. musculus to M. in. domesticus. Interestingly, in the Bavarian transect, the centre of the mtDNA cline was shifted about 10.9 km to the east relative to the X chromosome cline, with asymmetric introgression from M. in. domesticus to M. m. musculus, opposite in direction to that observed in the Czech transect. (c) 2005 The Linnean Society of London.