Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
High-density linkage mapping aided by transcriptomics documents ZW sex determination system in the Chinese mitten crab Eriocheir sinensis | |
Cui, Z.1,2; Hui, M.1; Liu, Y.1; Song, C.1,3; Li, X.1,3; Li, Y.1; Liu, L.1; Shi, G.1,3; Wang, S.4; Li, F.1; Zhang, X.1; Liu, C.1; Xiang, J.1; Chu, K. H.5 | |
2015-09-01 | |
发表期刊 | HEREDITY |
卷号 | 115期号:3页码:206-215 |
文章类型 | Article |
摘要 | The sex determination system in crabs is believed to be XY-XX from karyotypy, but centromeres could not be identified in some chromosomes and their morphology is not completely clear. Using quantitative trait locus mapping of the gender phenotype, we revealed a ZW-ZZ sex determination system in Eriocheir sinensis and presented a high-density linkage map covering similar to 98.5% of the genome, with 73 linkage groups corresponding to the haploid chromosome number. All sex-linked markers in the family we used were located on a single linkage group, LG60, and sex linkage was confirmed by genome-wide association studies (GWAS). Forty-six markers detected by GWAS were heterozygous and segregated only in the female parent. The female LG60 was thus the putative W chromosome, with the homologous male LG60 as the Z chromosome. The putative Z and W sex chromosomes were identical in size and carried many homologous loci. Sex ratio (5: 1) skewing towards females in induced triploids using unrelated animals also supported a ZW-ZZ system. Transcriptome data were used to search for candidate sex-determining loci, but only one LG60 gene was identified as an ankyrin-2 gene. Double sex- and mab3-related transcription factor 1 (Dmrt1), a Z-linked gene in birds, was located on a putative autosome. With complete genome sequencing and transcriptomic data, more genes on putative sex chromosomes will be characterised, thus leading towards a comprehensive understanding of the sex determination and differentiation mechanisms of E. sinensis, and decapod crustaceans in general. |
DOI | 10.1038/hdy.2015.26 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000359458400004 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/49947 |
专题 | 实验海洋生物学重点实验室 海洋环流与波动重点实验室 海洋生物技术研发中心 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Ocean Univ China, Coll Marine Life Sci, Key Lab Marine Genet & Breeding, Qingdao, Peoples R China 5.Chinese Univ Hong Kong, Sch Life Sci, Simon FS Li Marine Sci Lab, Hong Kong, Hong Kong, Peoples R China |
第一作者单位 | 实验海洋生物学重点实验室; 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Cui, Z.,Hui, M.,Liu, Y.,et al. High-density linkage mapping aided by transcriptomics documents ZW sex determination system in the Chinese mitten crab Eriocheir sinensis[J]. HEREDITY,2015,115(3):206-215. |
APA | Cui, Z..,Hui, M..,Liu, Y..,Song, C..,Li, X..,...&Chu, K. H..(2015).High-density linkage mapping aided by transcriptomics documents ZW sex determination system in the Chinese mitten crab Eriocheir sinensis.HEREDITY,115(3),206-215. |
MLA | Cui, Z.,et al."High-density linkage mapping aided by transcriptomics documents ZW sex determination system in the Chinese mitten crab Eriocheir sinensis".HEREDITY 115.3(2015):206-215. |
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