期刊
GENE
卷 536, 期 1, 页码 114-117出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gene.2013.11.068
关键词
Quantitative trait loci; Linkage map; Poecilia latipinna; Dorsal fin length; Male courtship display
资金
- Ministry of Higher Education (MOHE) Malaysia [FRGS 01-04-10-825FR]
- Department of Aquaculture, Universiti Putra Malaysia
A preliminary linkage map was constructed by applying backcross and testcross strategy using microsatellite (SSR) markers developed for Xiphophorus and Poecilia reticulata in ornamental fish, molly Poecilia sp. The linkage map having 18 SSR loci consisted of four linkage groups that spanned a map size of 516.1 cM. Association between genotypes and phenotypes was tested in a random fashion and QTL for dorsal fin length was found to be linked to locus Msb069 on linkage group 2. Coincidentally, locus Msb069 was also reported as putative homologue primer pairs containing SSRs repeat motif which encoded hSMP-1, a sex determining locus. Dorsal fin length particularly in males of Poecilia latipinna is an important feature during courtship display. Therefore, we speculate that both dorsal fin length and putative hSMP-1 gene formed a close proximity to male sexual characteristics. (C) 2013 Elsevier B.V. All rights reserved.
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