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A novel allotetraploid gibel carp strain with maternal body type and growth superiority

文献类型： 外文期刊

作者： Li, Zhong 1 ; Liang, Hong-Wei 1 ; Wang, Zhong-Wei 2 ; Zou, Gui-Wei 1 ; Gui, Jian-Fang 2 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, 8,1st Wudayuan Rd, Wuhan 430223, Hubei, Peoples R China

2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China

关键词： Allotetraploid;Gynogenesis;Polyploidy;Growth superiority;Morphological trait;Morphometric traits;Carassius gibelio

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

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收录情况： SCI

摘要： In this study, a stable allotetraploid gibel carp strain was established from allogynogenetic populations of triploid gibel carp clone D. Its modal chromosome number was identified as 208, and the added chromosomes were demonstrated to originate from common carp by internal transcribed spacer-1 (ITS1) and transferrin (Tf) allele sequence analyses. Significantly, its morphological body type and morphometric traits were observed to be similar to that of the maternal gibel carp. And, the new allotetraploid showed remarkable growth superiority by growth rate comparison tests, in which an approximate 22.9-26.6% higher growth rate was found in the allotetraploid strain than that in the maternal allogynogenetic gibel carp. Overall, we have bred an allotetraploid strain that resembles a typical gibel carp body type, and possesses significant growth superiority. Therefore, this study provides an excellent material for fish polyploidy breeding and aquaculture practice. (C) 2016 Elsevier B.V. All rights reserved.

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