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题名: Quantitative trait loci mapping for feed conversion efficiency in crucian carp (Carassius auratus)
作者: Pang, Meixia1, 2; Fu, Beide1; Yu, Xiaomu1; Liu, Haiyang1, 2; Wang, Xinhua1, 2; Yin, Zhan1; Xie, Shouqi1; Tong, Jingou1
刊名: SCIENTIFIC REPORTS
发表日期: 2017-12-05
DOI: 10.1038/s41598-017-17269-2
卷: 7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: QTL is a chromosomal region including single gene or gene clusters that determine a quantitative trait. While feed efficiency is highly important in aquaculture fish, little genetic and genomic progresses have been made for this trait. In this study, we constructed a high-resolution genetic linkage map in a full-sib F1 family of crucian carp (Carassius auratus) consisting of 113 progenies with 8,460 SNP markers assigning onto 50 linkage groups (LGs). This genetic map spanned 4,047.824 cM (0.478 cM/marker) and covered 98.76% of the crucian carp genome. 35 chromosome-wide QTL affecting feed conversion efficiency (FCE, 8 QTL), relative growth rate (RGR, 9 QTL), average daily gain (ADG, 13 QTL) and average daily feed intake (ADFI, 5 QTL) were detected on 14 LGs, explaining 14.0-20.9% of the phenotypic variations. In LGs of LG16, LG25, LG36 and LG49, several QTL affecting different traits clustered together at the identical or close regions of the same linkage group. Seven candidate genes, whose biological functions may involve in the energy metabolism, digestion, biosynthesis and signal transduction, were identified from these QTL intervals by comparative genomics analysis. These results provide a basis for elucidating genetic mechanism of feed efficiency and potential marker-assisted selection in crucian carp.
关键词[WOS]: TROUT ONCORHYNCHUS-MYKISS ; CHARR SALVELINUS-ALPINUS ; GENOME-WIDE ASSOCIATION ; SALMON SALMO-SALAR ; BEEF-CATTLE ; BODY-WEIGHT ; GENETIC ARCHITECTURE ; RAINBOW-TROUT ; METHANE PRODUCTION ; SEXUAL-MATURATION
语种: 英语
项目资助者: Special Fund for Strategic Pilot Technology of Chinese Academy of Sciences(XDA08010405) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ05) ; NSFC(31502153)
WOS记录号: WOS:000417051000021
ISSN号: 2045-2322
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/43676
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, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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