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Gynogenesis and sex determination in large-scale loach Paramisgurnus dabryanus (Sauvage)
You, Cuihong1,2; Yu, Xiaomu1; Tan, Deqing1; Tong, Jingou1; Tong, JO, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2008-06-01
Source PublicationAQUACULTURE INTERNATIONAL
ISSN0967-6120
Volume16Issue:3Pages:203-214
AbstractGynogenesis was induced using heterologous sperms in large-scale loach, Paramisgurnus dabryanus (Sauvage), in which a ZW/ZZ sex determination was previously proposed. Three microsatellite loci were used to monitor exclusive maternal inheritance of gynogenetic progenies. The results showed that high percentages of meiogynogens were produced at 4 min post-fertilization and mitogynogens were produced at 18 min post-fertilization by heat shocks, while meiotic gynogenesis was induced by cold shocks within a wide period and high heterozygosity was even observed in gynogens produced at 24 min post-fertilization. The sex ratios of the F, progenies in three gynogenetic families were significantly deviated from 1: 1 expectation with a female bias in two families and a male bias in one family (P < 0.05), and the other four gynogenetic families showed approximate 1:1 sex ratios. Moreover, the self-mating between gynogenetic F, progenies and mating between gynogenetic F, progenies and normal individuals produced all-female progenies or identical proportions of females and males. The data of sex ratios generally confirmed that the sex determination in large-scale loach was determined by the putative ZW/ZZ system, and the possible reasons causing the biased sex ratios are discussed.; Gynogenesis was induced using heterologous sperms in large-scale loach, Paramisgurnus dabryanus (Sauvage), in which a ZW/ZZ sex determination was previously proposed. Three microsatellite loci were used to monitor exclusive maternal inheritance of gynogenetic progenies. The results showed that high percentages of meiogynogens were produced at 4 min post-fertilization and mitogynogens were produced at 18 min post-fertilization by heat shocks, while meiotic gynogenesis was induced by cold shocks within a wide period and high heterozygosity was even observed in gynogens produced at 24 min post-fertilization. The sex ratios of the F, progenies in three gynogenetic families were significantly deviated from 1: 1 expectation with a female bias in two families and a male bias in one family (P < 0.05), and the other four gynogenetic families showed approximate 1:1 sex ratios. Moreover, the self-mating between gynogenetic F, progenies and mating between gynogenetic F, progenies and normal individuals produced all-female progenies or identical proportions of females and males. The data of sex ratios generally confirmed that the sex determination in large-scale loach was determined by the putative ZW/ZZ system, and the possible reasons causing the biased sex ratios are discussed.
SubtypeArticle
KeywordLarge-scale Loach (Paramisgumus Dabryanus) Temperature Shock Gynogenesis Sex Ratio Sex Determination
Department[You, Cuihong; Yu, Xiaomu; Tan, Deqing; Tong, Jingou] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [You, Cuihong] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Subject AreaFisheries
DOI10.1007/s10499-007-9138-6
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaFisheries
WOS SubjectFisheries
WOS IDWOS:000256024300002
WOS KeywordCATFISH CLARIAS-GARIEPINUS ; CYPRINUS-CARPIO L ; INDUCTION ; FISH ; DIFFERENTIATION ; TEMPERATURE ; TRIPLOIDY ; PRESSURE ; TELEOST ; SHOCKS
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8130
Collection期刊论文
Corresponding AuthorTong, JO, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
You, Cuihong,Yu, Xiaomu,Tan, Deqing,et al. Gynogenesis and sex determination in large-scale loach Paramisgurnus dabryanus (Sauvage)[J]. AQUACULTURE INTERNATIONAL,2008,16(3):203-214.
APA You, Cuihong,Yu, Xiaomu,Tan, Deqing,Tong, Jingou,&Tong, JO, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2008).Gynogenesis and sex determination in large-scale loach Paramisgurnus dabryanus (Sauvage).AQUACULTURE INTERNATIONAL,16(3),203-214.
MLA You, Cuihong,et al."Gynogenesis and sex determination in large-scale loach Paramisgurnus dabryanus (Sauvage)".AQUACULTURE INTERNATIONAL 16.3(2008):203-214.
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