The inheritance of female colour morphs in the damselfly Ceriagrion tenellum (Odonata, Coenagrionidae)
The inheritance of female colour morphs in the damselfly Ceriagrion tenellum (Odonata, Coenagrionidae)
复制标题
DOI：
10.1038/sj.hdy.6884930
复制
发表时间：
1999-03-01
期刊：
影响因子：
3.8
通讯作者：
Cordero, A
中科院分区：
文献类型：
--
作者：
Andrés, JA;Cordero, A
蜻蜓目的许多物种都有雌性有限的多色性。在Ceriagrion tenellum（Coenagrionidae）中，其中一种变体是红色的，就像同种雄性（androchrome，erythrogastrum morph），而大多数雌性是红色和黑色（typica morph）或黑色（melanogastrum morph）。该物种的处女雌性在实验室中交配，并饲养其后代（13次杂交）。这些十字架的结果表明，颜色变形控制的一个常染色体位点与女性有限的表达。第二代实验室（两个十字架）证实了这一遗传系统。该基因座有三个等位基因（每个表型一个）和一个显性等级：typica > melanogastrum > erythogastrum。本文还讨论了多态性豆娘雄/雌核色素等位基因的优势关系。自然种群中雌性变体的频率变化很大，但在所有情况下，typica雌性是最常见的。
Female-limited polychromatism is found in many species of Odonata. In Ceriagrion tenellum (Coenagrionidae) one of the morphs is red-coloured, like the conspecific male (androchrome, erythrogastrum morph), whereas most females are red and black (typica morph) or black (melanogastrum morph). Virgin females of this species were mated in the laboratory and their progeny reared (13 crosses). Results of these crosses indicate that colour morphs are controlled by one autosomal locus with female-limited expression. A second laboratory generation (two crosses) confirmed this inheritance system. This locus has three alleles (one per phenotype) and a hierarchy of dominance: typica > melanogastrum > erythrogastrum. The dominance relationships of andro/gynochrome alleles in polymorphic damselflies so far studied are discussed. The frequencies of female morphs in natural populations are highly variable, but in all cases typica females are the commonest.