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题名: A second-generation genetic linkage map for bighead carp (Aristichthys nobilis) based on microsatellite markers
作者: Zhu, C.1, 2; Tong, J.1; Yu, X.1; Guo, W.1, 2; Wang, X.1, 2; Liu, H.1, 2; Feng, X.1, 2; Sun, Y.1, 2; Liu, L.1, 2; Fu, B.2, 3
关键词: Aristichthys nobilis ; genetic map ; interspecific hybrids ; pseudo-testcross ; simple sequence repeats
刊名: ANIMAL GENETICS
发表日期: 2014-10-01
DOI: 10.1111/age.12194
卷: 45, 期:5, 页:699-708
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Agriculture, Dairy & Animal Science ; Genetics & Heredity
研究领域[WOS]: Agriculture ; Genetics & Heredity
英文摘要: Bighead carp (Aristichthys nobilis) is an important aquaculture fish worldwide. Genetic linkage maps for the species were previously reported, but map resolution remained to be improved. In this study, a second-generation genetic linkage map was constructed for bighead carp through a pseudo-testcross strategy using interspecific hybrids between bighead carp and silver carp. Of the 754 microsatellites genotyped in two interspecific mapping families (with 77 progenies for each family), 659 markers were assigned to 24 linkage groups, which were equal to the chromosome numbers of the haploid genome. The consensus map spanned 1917.3cM covering 92.8% of the estimated bighead carp genome with an average marker interval of 2.9cM. The length of linkage groups ranged from 52.2 to 133.5cM with an average of 79.9cM. The number of markers per linkage group varied from 11 to 55 with an average of 27.5 per linkage group. Normality tests on interval distances of the map showed a non-normal marker distribution; however, significant correlation was found between the length of linkage group and the number of markers below the 0.01 significance level (two-tailed). The length of the female map was 1.12 times that of the male map, and the average recombination ratio of female to male was 1.10:1. Visual inspection showed that distorted markers gathered in some linkage groups and in certain regions of the male and female maps. This well-defined genetic linkage map will provide a basic framework for further genome mapping of quantitative traits, comparative mapping and marker-assisted breeding in bighead carp.
关键词[WOS]: TROUT ONCORHYNCHUS-MYKISS ; CROSS-SPECIES APPLICATION ; HYPOPHTHALMICHTHYS-MOLITRIX ; RAINBOW-TROUT ; CTENOPHARYNGODON-IDELLA ; PARALICHTHYS-OLIVACEUS ; JAPANESE FLOUNDER ; ATLANTIC SALMON ; PACIFIC OYSTER ; AFLP MARKERS
语种: 英语
WOS记录号: WOS:000341682200010
ISSN号: 0268-9146
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20333
Appears in Collections:鱼类生物学及渔业生物技术研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat CAS, Wuhan 430072, Peoples R China

Recommended Citation:
Zhu, C.; Tong, J.; Yu, X.; Guo, W.; Wang, X.; Liu, H.; Feng, X.; Sun, Y.; Liu, L.; Fu, B..A second-generation genetic linkage map for bighead carp (Aristichthys nobilis) based on microsatellite markers,ANIMAL GENETICS,2014,():
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