期刊
SCIENCE CHINA-LIFE SCIENCES
卷 53, 期 4, 页码 409-415出版社
SCIENCE PRESS
DOI: 10.1007/s11427-010-0092-6
关键词
Carassius auratus gibelio; polyploidy; clonal diversity; gynogenesis; sexual reproduction; dual reproduction modes; breeding
类别
资金
- National Key Basic Research Program [2010CB126301]
- National Natural Science Foundation of China [30630050]
- State Key Laboratory of Freshwater Ecology and Biotechnology [2008FB007]
- Institute of Hydrobiology, Chinese Academy of Sciences [075A01]
A unisexual species is generally associated with polyploidy, and reproduced by a unisexual reproduction mode, such as gynogenesis, hybridogenesis or parthenogenesis. Compared with other unisexual and polyploid species, gibel carp (Carassius auratus gibelio) has a higher ploidy level of hexaploid. It has undergone several successive rounds of genome polyploidy, and experienced an additional, more recent genome duplication event. More significantly, the dual reproduction modes, including gynogenesis and sexual reproduction, have been demonstrated to coexist in the polyploid gibel carp. This article reviews the genetic basis concerning polyploidy origin, clonal diversity and dual reproduction modes, and outlines the progress in new variety breeding and gene identification involved in the reproduction and early development. The data suggests that gibel carp are under an evolutionary trajectory of diploidization. As a novel evolutionary developmental (Evo-Devo) biology model, this work highlights future perspectives about the functional divergence of duplicated genes and the sexual origin of vertebrate animals.
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