Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae).
Genetic linkage map of fishes of the genus Xiphophorus (Teleostei: Poeciliidae).
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发表时间：
1991-02
期刊：
影响因子：
3.3
通讯作者：
D. Morizot;S. Slaugenhaupt;Klaus D. Kallman;Aravinda Chakravartit
中科院分区：
文献类型：
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作者：
D. Morizot;S. Slaugenhaupt;Klaus D. Kallman;Aravinda Chakravartit
对剑尾鱼属鱼类种内和种间遗传杂交的2600多个回交杂交个体的76个多态位点的基因型进行了分析，鉴定出17个多点连锁群，其中包含55个蛋白质编码位点和1个性染色体连锁的色素模式基因。多点连锁分析确定了10个连锁群的高度可能的基因顺序。总基因组长度估计约为18摩根。剑尾鱼的连锁图谱与其他鱼类，两栖动物和哺乳动物的比较表明，鱼类的基因图谱非常相似，可能保留了许多同线群存在于所有脊椎动物的祖先。
Analysis of genotypes of 76 polymorphic loci in more than 2600 backcross hybrid individuals derived from intra- and interspecific genetic crosses of fishes of the genus Xiphophorus (Poeciliidae) resulted in the identification of 17 multipoint linkage groups containing 55 protein-coding loci and one sex chromosome-linked pigment pattern gene. Multipoint linkage analyses identified highly probable gene orders for 10 linkage groups. The total genome length was estimated to be approximately 18 Morgans. Comparisons of the Xiphophorus linkage map with those of other fishes, amphibians and mammals suggested that fish gene maps are remarkably similar and probably retain many syntenic groups present in the ancestor of all vertebrates.