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Further Studies on Rana pipiens Racial Hybrids
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Further Studies on Rana pipiens Racial Hybrids

著者: John A Moore
版本/格式: 文章 文章 : 英语
刊登在:American Naturalist, Jul. - Aug., 1950, vol. 84, no. 817, p. 247-254
数据库:JSTOR
提要:
The data presented in this paper are a continuation of a study of geographic variation of adaptations in Rana pipiens Schreber and of hybrids arising from interpopulation crosses. The eggs and jelly mass of Costa Rica pipiens are described. They are of the northern, cold-adapted type. Hybrids resulting from the cross Vermont [♀] × Colorado [♂] are normal. Hybrids resulting from the cross Vermont [♀] × Costa Rica [♂]  再读一些...
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文件类型: 文章
所有的著者/提供者: John A Moore
ISSN:0003-0147
OCLC号码: 477924968
语言注释: English
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摘要:

The data presented in this paper are a continuation of a study of geographic variation of adaptations in Rana pipiens Schreber and of hybrids arising from interpopulation crosses. The eggs and jelly mass of Costa Rica pipiens are described. They are of the northern, cold-adapted type. Hybrids resulting from the cross Vermont [♀] × Colorado [♂] are normal. Hybrids resulting from the cross Vermont [♀] × Costa Rica [♂] have minor defects. This result is discussed in light of the previous cases of defective hybrids arising from crosses of northern and southern pipiens.

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