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首页> 外文期刊>Cytology and genetics >Genetic Homeostasis and Developmental Stability in Natural Populations of Bisexual (Carassius auratus) and Unisexual (C. gibelio) Goldfishes
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Genetic Homeostasis and Developmental Stability in Natural Populations of Bisexual (Carassius auratus) and Unisexual (C. gibelio) Goldfishes

机译：双性（Car鱼）和双性（C. gibelio）金鱼自然种群的遗传稳态和发育稳定性

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摘要

One amphymictic diploid Carassius auratus, three apomictic triploids C. gibbelio, and a hybrid triploid Carassius auratus forms of goldfish were compared with respect to a set of characteristics of developmental stability: morphological variation, fluctuating asymmetry, and phenodeviations. It was found that C. gibbelio forms are characterized by lower levels both of morphological variation and fluctuating symmetry and more rare morphological abnormalties. A hybrid form Carassius auratus-gibelio was characterized by the intermediate values of the above-listed features. It is emphasized that phenotypic stabilization of apomictic forms is caused by two factors: its clone structure and actual developmental canalization. It is specified that promoted genetic homeostasis of the C. gibelio form does not give obvious adaptive advantages, as in the basic river basins of East and Central Europe. they are every where ousted by an amphimictic C. auratus.
机译：比较了金鱼的一种两亲性二倍体Car鱼，三种无融合体三倍体金龟鱼和一种杂种三倍体to鱼形式的发育稳定性的一组特征：形态变异，波动性不对称和表倒性。发现吉百氏梭菌形式具有较低水平的形态变化和波动的对称性以及更罕见的形态异常。杂种Car鱼（Carassius auratus-gibelio）的特征是上述特征的中间值。需要强调的是，无融合生殖形式的表型稳定是由两个因素引起的：其克隆结构和实际的发育渠道。特定的是，像在东欧和中欧的基本流域一样，促进的吉氏梭菌形式的遗传稳态没有明显的适应性优势。它们被两栖的金黄色梭菌驱逐出处。

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  • 来源
    《Cytology and genetics》 |2009年第5期|336-342|共7页
  • 作者

    S. E. Mezhzherin; S. V. Kokodii;

  • 作者单位

    Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine;

    Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kiev, Ukraine;

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