中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋生态与环境科学重点实验室
Chromosome inheritance in triploid Pacific oyster Crassostrea gigas thunberg

文献类型：期刊论文

作者Gong, N; Yang, H; Zhang, G; Landau, BJ; Guo, X; Guo, X, Rutgers State Univ, Haskin Shellfish Res Lab, Inst Marine & Coastal Sci, 6959 Miller Ave, Port Norris, NJ 08349 USA
刊名HEREDITY
出版日期2004-11-01
卷号93期号:5页码:408-415
关键词Triploidy Aneuploidy Chromosome Sterility Evolution Mollusc
ISSN号0018-067X
DOI10.1038/sj.hdy.6800517
文献子类Article
英文摘要Reproduction and chromosome inheritance in triploid Pacific oyster (Crassostrea gigas Thunberg) were studied in diploid female x triploid male (DT) and reciprocal (TD) crosses. Relative fecundity of triploid females was 13.4% of normal diploids. Cumulative survival from fertilized eggs to spat stage was 0.007% for DT crosses and 0.314% for TD crosses. Chromosome number analysis was conducted on surviving progeny from DT and TD crosses at 1 and 4 years of age. At Year 1, oysters from DT crosses consisted of 15% diploids (2n = 20) and 85% aneuploids. In contrast, oysters from TD crosses consisted of 57.2% diploids, 30.9% triploids (3n = 30) and only 11.9% aneuploids, suggesting that triploid females produced more euploid gametes and viable progeny than triploid males. Viable aneuploid chromosome numbers included 2n + 1, 2n + 2, 2n + 3, 3n - 2 and 3n - 1. There was little change over time in the overall frequency of diploids, triploids and aneuploids. Among aneuploids, oysters with 2n + 3 and 3n-2 chromosomes were observed at Year 1, but absent at Year 4. Triploid progeny were significantly larger than diploids by 79% in whole body weight and 98% in meat weight at 4 years of age. Aneuploids were significantly smaller than normal diploids. This study suggests that triploid Pacific oyster is not completely sterile and cannot offer complete containment of cultured populations.; Reproduction and chromosome inheritance in triploid Pacific oyster (Crassostrea gigas Thunberg) were studied in diploid female x triploid male (DT) and reciprocal (TD) crosses. Relative fecundity of triploid females was 13.4% of normal diploids. Cumulative survival from fertilized eggs to spat stage was 0.007% for DT crosses and 0.314% for TD crosses. Chromosome number analysis was conducted on surviving progeny from DT and TD crosses at 1 and 4 years of age. At Year 1, oysters from DT crosses consisted of 15% diploids (2n = 20) and 85% aneuploids. In contrast, oysters from TD crosses consisted of 57.2% diploids, 30.9% triploids (3n = 30) and only 11.9% aneuploids, suggesting that triploid females produced more euploid gametes and viable progeny than triploid males. Viable aneuploid chromosome numbers included 2n + 1, 2n + 2, 2n + 3, 3n - 2 and 3n - 1. There was little change over time in the overall frequency of diploids, triploids and aneuploids. Among aneuploids, oysters with 2n + 3 and 3n-2 chromosomes were observed at Year 1, but absent at Year 4. Triploid progeny were significantly larger than diploids by 79% in whole body weight and 98% in meat weight at 4 years of age. Aneuploids were significantly smaller than normal diploids. This study suggests that triploid Pacific oyster is not completely sterile and cannot offer complete containment of cultured populations.
学科主题Ecology ; Evolutionary Biology ; Genetics & Heredity
URL标识查看原文
语种英语
WOS记录号WOS:000224693300003
公开日期2010-11-18
源URL[http://ir.qdio.ac.cn/handle/337002/1789]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Guo, X, Rutgers State Univ, Haskin Shellfish Res Lab, Inst Marine & Coastal Sci, 6959 Miller Ave, Port Norris, NJ 08349 USA
作者单位1.Rutgers State Univ, Haskin Shellfish Res Lab, Inst Marine & Coastal Sci, Port Norris, NJ 08349 USA
2.Chinese Acad Sci, Inst Oceanol, Expt Marine Biol Lab, Qingdao 266071, Shandong, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Gong, N,Yang, H,Zhang, G,et al. Chromosome inheritance in triploid Pacific oyster Crassostrea gigas thunberg[J]. HEREDITY,2004,93(5):408-415.
APA Gong, N,Yang, H,Zhang, G,Landau, BJ,Guo, X,&Guo, X, Rutgers State Univ, Haskin Shellfish Res Lab, Inst Marine & Coastal Sci, 6959 Miller Ave, Port Norris, NJ 08349 USA.(2004).Chromosome inheritance in triploid Pacific oyster Crassostrea gigas thunberg.HEREDITY,93(5),408-415.
MLA Gong, N,et al."Chromosome inheritance in triploid Pacific oyster Crassostrea gigas thunberg".HEREDITY 93.5(2004):408-415.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。