Variation of Color and Ray Pattern in Juvenile Shells inHatchery-produced Freshwater Triangle Pearl Mussels, Hyriopsis cumingii, in China

文献类型： 外文期刊

第一作者： Wen, Haibo

作者： Wen, Haibo;Gu, Ruobo;Cao, Zheming;Zhou, Xin;Nie, Zhijuan;Ge, Xianping;Xu, Pao;Hua, Dan

作者机构：

期刊名称：JOURNAL OF THE WORLD AQUACULTURE SOCIETY （ 影响因子：2.512； 五年影响因子：2.47 ）

ISSN： 0893-8849

年卷期： 2013 年 44 卷 1 期

页码：

收录情况： SCI

摘要： The variation and inheritance of juvenile shell color and pigmentation pattern in the freshwater mussel, Hyriopsis cumingii, were reported in 1-yr-old progeny of eight families. There were three distinctive phenotypes of shell color and pigmentation patterns observed, including a greenish-brown shell with radial rays, yellowish-brown shell with radial rays, and yellowish-brown shell without radial rays. There were no greenish-brown individuals without radial rays. The shell color phenotypes showed variation with the growth in juvenile Stage I (13cm in shell length), and the percentage of individuals with radial rays increased once they reached a shell length of 11mm and then stabilized after reaching 20mm in shell length. Shell color differentiation became more apparent at a shell length of 26mm. Results of chi-square tests of the segregation ratio of shell color or ray phenotypes obtained from eight families at juvenile Stage II (69cm in shell length) suggested that greenish-brown is controlled by a dominant allele (G) and yellowish-brown-shell phenotype is by a recessive allele (y); the ray pattern phenotype is controlled by a recessive (r) and a dominant allele (R) at a single locus. Shell color phenotypes may be a useful genetic marker for future selective breeding of triangle pearl mussels.

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