Polyploidy in the salamander, Eurycea bislineata
Polyploidy in the salamander, Eurycea bislineata
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DOI：
10.1093/oxfordjournals.jhered.a104767
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发表时间：
1939-09-01
影响因子：
3.1
通讯作者：
Fankhauser, G
中科院分区：
文献类型：
--
作者：
Fankhauser, G
In E. bislineata, 2n = 28. Triploid and, more rarely, tetraploid larvae occur in nature. They may be discovered while developing normally, by chromosome counts and by comparison of nuclear sizes in amputated tail tips. Polyploid larvae may be identified tentatively by the larger size, wider spacing, and smaller number of pigment cells. Of 134 larvae examined, 13 were triploid and 2 tetraploid. The triploid larvae develop and grow normally; they may or may not become slightly larger than the controls. The tetraploid larvae are slightly smaller than the diploid and grow more slowly. As in triploid larvae of the newt, Triturus viridescens, gigantism of polyploid Eurycea larvae is prevented by a reduction in cell number which compensates the increase in size of the individual cells.
