Genetic effects of ibreeding on growth trajectories in turbot (Scophthalmus maximus)

doi:10.1016/j.aquaculture.2021.736470

CORC > 海洋研究所 > 中国科学院海洋研究所 > 实验海洋生物学重点实验室

	Genetic effects of ibreeding on growth trajectories in turbot (Scophthalmus maximus)
	Yang, Li'ang 1; Wang, Lijuan 4; Wu, Zhihao 4; Hao, Zhiyu 3; Song, Zongcheng 2; You, Feng 4; Yang, Runqing 1,3
刊名	AQUACULTURE
	2021-04-15
卷号	536 页码:7
关键词	Growth trait Inbreeding depression Dynamic heritabilities Random regression model Turbot
ISSN号	0044-8486
DOI	10.1016/j.aquaculture.2021.736470
通讯作者	Yang, Runqing(runqingyang@cafs.ac.cn)
英文摘要	In order to investigate genetic effects of inbreeding on growth trajectories in turbot (Scophthalmus maximus), we produced multiple families by out-crossing for one generation, and then self-crossing for one or two continuous generations, and repeatedly measured body weight (BWE), body length (BL), and body width (BW) on 1082 fish. The random regression models (RRMs) were constructed by fitting changes in fixed and random effects with optimal growth curve, 3-order Legendre polynomial for each trait. Comparison in genetic effects among three inbreeding groups indicated that inbreeding affected BL more strongly than BWE and BW, and BWE showed the lowest inbreeding depression among the three growth traits. In course of growths, inbreeding depressions of the analyzed traits were not necessarily linear with inbreeding degrees, also depended on days of ages. Meanwhile, the dynamic heritabilities for the three growth traits tended to exhibit a parabolic tendency between 300 and 900 growth days, with ranges of 0.382-0.913. The growth traits in the early growth days consistently showed low genetic correlations with those in the later growth days, with estimates of 0.313 above. When the inbreeding coefficients were excluded from relationship matrix, the heritabilities and genetic correlations were underestimated.
资助项目	National Key R&D Program of China[2018YFD0900201]
WOS研究方向	Fisheries ; Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000632383900006
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/170374]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Yang, Runqing
作者单位	1.Northeast Agr Univ, Coll Anim Sci & Technol, Harbin 150030, Peoples R China 2.Weihai Shenghang Aquaculture Sci Technol Ltd Co, Weihai 264200, Peoples R China 3.Chinese Acad Fishery Sci, Res Ctr Aquat Biotechnol, Beijing 100141, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Yang, Li'ang,Wang, Lijuan,Wu, Zhihao,et al. Genetic effects of ibreeding on growth trajectories in turbot (Scophthalmus maximus)[J]. AQUACULTURE,2021,536:7.
APA	Yang, Li'ang.,Wang, Lijuan.,Wu, Zhihao.,Hao, Zhiyu.,Song, Zongcheng.,...&Yang, Runqing.(2021).Genetic effects of ibreeding on growth trajectories in turbot (Scophthalmus maximus).AQUACULTURE,536,7.
MLA	Yang, Li'ang,et al."Genetic effects of ibreeding on growth trajectories in turbot (Scophthalmus maximus)".AQUACULTURE 536(2021):7.