The Genetic Basis of Skin Color and Body Shape of Domesticated Purse Red Carp Revealed by Comparative Transcriptome Analysis
文献类型： 外文期刊
作者： Zhang, Songhao 1 ; Gong, Yiwen 1 ; Xu, Jian 1 ; Hu, Mou 4 ; Xu, Peng 5 ; Jiang, Yanliang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Aquat Genom, Minist Agr, Beijing 100141, Peoples R China
2.Chinese Acad Fishery Sci, CAFS Key Lab Aquat Genom, Beijing 100141, Peoples R China
3.Chinese Acad Fishery Sci, Beijing Key Lab Fishery Biotechnol, Beijing 100141, Peoples R China
4.Hangzhou Qiandaohu Xunlong Sci Tech Dev Co Ltd, Quzhou 324000, Peoples R China
5.Xiamen Univ, Fujian Collaborat Innovat Ctr Exploitat & Utiliza, Xiamen 361102, Fujian, Peoples R China
6.Ningbo Univ, Key Lab Appl Marine Biotechnol, Minist Educ, Ningbo 315211, Zhejiang, Peoples R China
关键词： Transcriptome; Purse red carp; Skin color; Body shape; Genetic basis
期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.831； 五年影响因子：0.768 ）
ISSN： 0030-9923
年卷期： 2019 年 51 卷 5 期
页码：
收录情况： SCI
摘要： Purse red carp is an economic important and well-known domesticated variety of common carp in China. During a long history of domestication, purse red carp displays consumer-favored morphological traits such as red skin color and purse-shaped body form. However, the underlying genetic basis is less studied. In the present study, we utilized the powerful approach of comparative transcriptome analysis via high throughput sequencing, and examined transcriptome profiles of purse red carp by comparing with Yellow River carp, of which the skin color and body shape are quite similar to wild carp. A total of 434 million reads was generated, resulted in 203,590 assembled contigs, which was used as the reference sequences. Comparing the skin and blood transcriptome files showed that 2,767 unigenes were significantly differentially expressed, including 1,663 genes up-regulated and 1,806 down-regulated in purse red carp. Moreover, gene pathway analysis of the differentially expressed genes was conducted. We proposed the skin color and body shape depended upon at least four pathways including melanin biosynthesis, TGF-beta signaling, Wnt signaling and MAPK signaling pathways. We obtained candidate genes that may affect the morphological characteristics of purse red carp resulted from the long history of domestication, including TYRP1b, PMELa, KITa, BMP8a, ACVR2aa, TGFB1a, TGFB3, TGFBR2. Understanding the molecular mechanisms underlying the biological characteristics of purse red carp will advance our knowledge of the genetic differentiation between different common carp varieties caused by domestication, and accelerate the molecular selection of fish species with consumer-favored skin color and body shape.
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