AFLP-based genetic linkage map of marine shrimp Penaeus (Fenneropenaeus) chinensis
文献类型: 外文期刊
第一作者: Li, Zhaoxia
作者: Li, Zhaoxia;Li, Jian;Wang, Qingyin;He, Yuying;Liu, Ping
作者机构:
关键词: AFLP;Penaeus (Fenneropenaeus) chinensis;linkage map
期刊名称:AQUACULTURE ( 影响因子:4.242; 五年影响因子:4.723 )
ISSN: 0044-8486
年卷期: 2006 年 261 卷 2 期
页码:
收录情况: SCI
摘要: This paper presents the genetic linkage map of the Chinese shrimp Penaeus (Fenneropenaeus) chinensis constructed with 472 AFLP markers. A hundred F-1 progeny from an intercross between a female from the new variety "Yellow Sea No. 1" and wild caught male used for the mapping study. Two separate maps were constructed for each parent. The female linkage map consisted of 197 marker loci forming 3 5 linkage groups and spanned a total length of 2191.1 cM, with an average marker space of 13.5 cM. The male map consisted of 194 marker loci mapped to 36 linkage groups and spanned a total length of 1737.3 cM, with an average marker spacing of 11.0 cM. The level of segregation distortion observed in this study was 12.2%. The estimated genome length of P. chinensis was 3150.3 cM for the female and 2549.3 cM for the male, respectively. The observed genome coverage was 69.6% for the female and 68.1% for the male map. The linkage maps constructed in this study provide basic information for further linkage studies on Chinese shrimp, and more importantly, the construction of the maps are part of the work of the genetic breeding programs which will be used for growth discovered in the QTL analysis of R chinensis. (c) 2006 Elsevier B.V. All rights reserved.
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