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Chromosome ploidy manipulation of allotetraploids and their fertility in Japanese phytophagous crucian carp (JPCC) (female) X red crucian carp (RCC) (male)
Chen, Minrong; Yang, Xingqi; Yu, Xiaomu; Chen, Hongxi; Yi, Yonglan; Liu, Hanqin; Inst. Hydrobiol., Chinese Acad. Sci., Wuhan 430072, China
1997
Source PublicationActa Hydrobiologica Sinica
ISSN1000-3207
Volume21Issue:3Pages:197-206
AbstractHeat shock was used to induce allotetraploidy in Japanese phytophagous crucian carp (JPCC) eggs fertilized artificially with sperms from red crucian carp (RCC) 37-38 min after fertilization and shortly before cleavage. Milt was obtained from 1- and 2-year old h4n JPCC male, but ovulated females were not found, and back crossed to the 2n JPCC female produced a large number of offsprings. Chromosome analysis of the offsprings, based on cultured leucocytes from peripheral blood indicated that all were triploids (3n = 150). The fertilizing ability of, the offspring was very low (11.451.3% of fertility, average: 32.4%). The present observation supports the hypothesis that the head of the diploid spermatozoas being wider than the haploid may prevent their penetration through the micropyle canal. Females or males of interploid triploid JPCC did not develop into maturity, but they have higher growth rate than the diploid one. New tetraploids were produced by the retention of the second polar body following fertilization (4Nmale X 2N female), and they were found to be tetraploid, triploid and diploid by chromosome analysis (among 72 resultant fish, there were 19 tetraploid, 32 triploid and 21 diploid, respectively.)
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17831
Collection期刊论文
Corresponding AuthorInst. Hydrobiol., Chinese Acad. Sci., Wuhan 430072, China
Recommended Citation
GB/T 7714
Chen, Minrong,Yang, Xingqi,Yu, Xiaomu,et al. Chromosome ploidy manipulation of allotetraploids and their fertility in Japanese phytophagous crucian carp (JPCC) (female) X red crucian carp (RCC) (male)[J]. Acta Hydrobiologica Sinica,1997,21(3):197-206.
APA Chen, Minrong.,Yang, Xingqi.,Yu, Xiaomu.,Chen, Hongxi.,Yi, Yonglan.,...&Inst. Hydrobiol., Chinese Acad. Sci., Wuhan 430072, China.(1997).Chromosome ploidy manipulation of allotetraploids and their fertility in Japanese phytophagous crucian carp (JPCC) (female) X red crucian carp (RCC) (male).Acta Hydrobiologica Sinica,21(3),197-206.
MLA Chen, Minrong,et al."Chromosome ploidy manipulation of allotetraploids and their fertility in Japanese phytophagous crucian carp (JPCC) (female) X red crucian carp (RCC) (male)".Acta Hydrobiologica Sinica 21.3(1997):197-206.
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