The genetic map of goldfish (Carassius auratus) provided insights to the divergent genome evolutions in the Cyprinidae family
文献类型： 外文期刊
作者： Kuang, You-Yi 1 ; Zheng, Xian-Hu 1 ; Li, Chun-Yan 2 ; Li, Xiao-Min 2 ; Cao, Ding-Chen 1 ; Tong, Guang-Xiang 1 ; Lv, We 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
2.Chinese Acad Fishery Sci, Ctr Appl Aquat Genom, Beijing 10014, Peoples R China
3.Tianjin Fisheries Res Inst, Tianjin 300221, Peoples R China
4.Boston Childrens Hosp, Div Hematol Oncol, Stem Cell Program, Boston, MA 02115 USA
5.Harvard Med Sch, Dana Farber Canc Inst, Boston, MA 02115 USA
6.King Saud Univ, Coll Sci, Dept Zool, POB 2455, Riyadh 11451, Saudi Arabia
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2016 年 6 卷
页码：
收录情况： SCI
摘要： A high-density linkage map of goldfish (Carassius auratus) was constructed using RNA-sequencing. This map consists of 50 linkage groups with 8,521 SNP markers and an average resolution of 0.62 cM. Approximately 84% of markers are in protein-coding genes orthologous to zebrafish proteins. We performed comparative genome analysis between zebrafish and medaka, common carp, grass carp, and goldfish to study the genome evolution events in the Cyprinidae family. The comparison revealed large synteny blocks among Cyprinidae fish and we hypothesized that the Cyprinidae ancestor undergone many inter-chromosome rearrangements after speciation from teleost ancestor. The study also showed that goldfish genome had one more round of whole genome duplication (WGD) than zebrafish. Our results illustrated that most goldfish markers were orthologous to genes in common carp, which had four rounds of WGD. Growth-related regions and genes were identified by QTL analysis and association study. Function annotations of the associated genes suggested that they might regulate development and growth in goldfish. This first genetic map enables us to study the goldfish genome evolution and provides an important resource for selective breeding of goldfish.
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