Natural hybridisation between two sympatric species of mice Mus musculus domesticus L. and Mus spretus Lataste.

Natural hybridisation between two sympatric species of mice Mus musculus domesticus L. and Mus spretus Lataste.
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DOI:
10.1016/s1631-0691(02)01413-0
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发表时间:
2002-02-01
影响因子:
2
通讯作者:
Bonhomme, F
Bonhomme, F
中科院分区:
生物学4区
文献类型:
--
作者:
Orth, A;Belkhir, K;Bonhomme, F

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使用蛋白质位点和 DNA 标记,我们通过多位点遗传分析表明,两种同域小鼠种 Mus musculus homeus 和 Mus spretus 的某些种群显示出部分渐渗的明显迹象。考虑到 F1 雄性的不育性以及两个物种基因组之间已知的部分遗传不相容性,我们的发现并没有使生物物种复合体无效,而是允许认为即使在 Laxa 分化很久之后,仍然可能存在非常有限的遗传交换。这可能会对某些类型的侵入性或有利 DNA(如转座元件或病原体抗性基因)的动态产生一些影响。 (C) 2002 年科学院 / 科学与医学版 Elsevier SAS。
Using protein loci and DNA markers, we show by a multilocus genetic analysis that certain populations of the two sympatric mouse species Mus musculus domesticus and Mus spretus show clear signs of partial introgression. Given the sterility of F1 males and the known partial genetic incompatibilities between the genomes of the two species, our finding does not invalidate the biological species complex, but allows to think that very limited genetic exchanges remain possible even long after the divergence of Laxa. This may have some consequences on the dynamics of certain kinds of invasive or advantageous DNAs like transposable elements or pathogen resistance genes. (C) 2002 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.