Genetic basis and breeding application of clonal diversity and dual reproduction modes in polyploid Carassius auratus gibelio
Genetic basis and breeding application of clonal diversity and dual reproduction modes in polyploid Carassius auratus gibelio
复制标题
多倍体银鲫克隆多样性和双重繁殖模式的遗传基础及育种应用
DOI：
10.1007/s11427-010-0092-6
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发表时间：
2010-04-01
影响因子：
9.1
通讯作者：
Zhou Li
中科院分区：
文献类型：
--
作者：
Gui JianFang;Zhou Li
单性物种通常与多倍性有关，并通过单性生殖方式繁殖，例如雌核发育、杂交发育或单性生殖。异育银鲫（Carassius auratus gibelio）是一种具有较高倍性水平的六倍体。它经历了几轮连续的基因组多倍性，并经历了额外的，更近的基因组复制事件。更重要的是，多倍体异育银鲫同时存在雌核发育和有性生殖的双重生殖模式。本文综述了多倍体起源、克隆多样性和双重繁殖模式的遗传基础，并概述了新品种选育和繁殖与早期发育相关基因鉴定的研究进展。这些数据表明银鲫处于二倍体化的进化轨迹下。作为一种新的进化发育（Evo-Devo）生物学模型，这项工作突出了未来的观点重复基因的功能分歧和脊椎动物的性起源。
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.