Male and female mitochondrial DNA lineages in the blue mussel (Mytilus edulis) species group.
Male and female mitochondrial DNA lineages in the blue mussel (Mytilus edulis) species group.
复制标题
蓝贻贝 (Mytilus edulis) 物种组中的雄性和雌性线粒体 DNA 谱系。
DOI：
10.1093/oxfordjournals.molbev.a040252
复制
发表时间：
1995
影响因子：
10.7
通讯作者：
E. Zouros
中科院分区：
文献类型：
--
作者：
D. Stewart;C. Saavedra;Rebecca R. Stanwood;A. O. Ball;E. Zouros
在紫贻贝（Mytilus edulis）种复合体中，线粒体DNA（mtDNA）遗传与性别相结合。雌性接收母亲的线粒体DNA并将其传递给她们的女儿和儿子。此外，男性从父亲那里获得mtDNA，并将这种男性mtDNA传递给他们的儿子。如果这种“双单亲遗传”模式比M。edulis物种复杂，那么这个群体的所有成员都必须有两个不同的mtDNA谱系：通过女性传播的母系谱系和通过男性传播的父系谱系。为了验证这一假设，我们在这个复合体中的两个分类群，M。edulis和M. trossulus的，通过限制性片段的全mtDNA基因组和DNA序列的细胞色素c氧化酶亚基III基因（COIII）的一个区域。这些贻贝中存在的各种有丝分裂型根据它们的性别关联被分类为“雄性”或“雌性”，并属于M。edulis或M. trossulus基于物种特异性等位酶。基于COIII序列的最大简约性和邻近连接系统发育将女性和男性线粒体DNA分为两个不同的谱系，而无论具体起源如何，这与这些谱系的起源早于M的分歧的假设一致。edulis和M. trossulus。
In blue mussels of the Mytilus edulis species complex, mitochondrial DNA (mtDNA) inheritance is coupled with gender. Females receive their mother's mtDNA and pass it on to both their daughters and sons. In addition, males receive mtDNA from their father and transmit this male mtDNA to their sons. If this pattern of "doubly uniparental inheritance" is older than the M. edulis species complex, then all members of this group must have two distinct mtDNA lineages: a maternal lineage that is transmitted through females and a paternal lineage that is transmitted through males. To test this hypothesis, we scored mtDNA variation in two taxa in this complex, M. edulis and M. trossulus, by means of restriction fragment profiles of whole-mtDNA genomes and DNA sequence of a region of the cytochrome c oxidase subunit III gene (COIII). The various mitotypes present in these mussels were classified as "male" or "female" based on their gender association and as belonging to M. edulis or M. trossulus based on species-specific allozymes. Both maximum parsimony and neighbor-joining phylogenies based on the COIII sequences grouped female and male mtDNAs into two distinct lineages irrespective of specific origin in accordance with the hypothesis that the origin of these lineages predates the divergence of M. edulis and M. trossulus.
影响因子：
3.3
作者：
Ballard,JW;Kreitman,M
通讯作者：
Kreitman,M