太平洋鲑鱼（大麻哈鱼属）中分子标记与性别决定基因的不稳定连锁

Unstable Linkage of Molecular Markers with Sex Determination Gene in Pacific Salmon (Oncorhynchus spp.).

作者信息

Podlesnykh Aleksandr V, Brykov Vladimir A, Kukhlevsky Andrey D

机构信息

National Center of Marine Biology, Far East Branch, Russian Academy of Sciences, Vladivostok, Russia.

Department of Cell Biology and Genetics, Far Eastern Federal University, Vladivostok, Russia.

出版信息

J Hered. 2017 May 1;108(3):328-333. doi: 10.1093/jhered/esx001.

DOI:10.1093/jhered/esx001

PMID:28391306

Abstract

In the present study, we tested the congruence between the sdY sex-specific marker and other commonly used male markers, located on the Y-chromosome, with the sex phenotypes in 5 species of Pacific salmon in Asian waters, including Chinook, chum, sockeye, masu, and pink salmon. We found that the localization of the sex-specific marker of both males and females of these species is not consistent with the phenotypic sex. Also, no linkage was found between noncoding markers and the sdY gene in the same species samples. Possible genetic and physiological mechanisms underlying this discrepancy are discussed.

摘要

在本研究中，我们测试了位于Y染色体上的sdY性别特异性标记与其他常用的雄性标记，与亚洲水域5种太平洋鲑鱼（包括奇努克鲑、秋鲑、红鲑、马苏鲑和粉鲑）的性别表型之间的一致性。我们发现，这些物种的雄性和雌性性别特异性标记的定位与表型性别不一致。此外，在同一物种样本中，未发现非编码标记与sdY基因之间存在连锁关系。讨论了这种差异潜在的遗传和生理机制。