Experimental tests of sex-allocation theory in plants

被引：129

作者：

Campbell, DR ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92697 USA

来源：

TRENDS IN ECOLOGY & EVOLUTION | 2000年 / 15卷 / 06期

关键词：

D O I：

10.1016/S0169-5347(00)01872-3

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

A general explanation for diversity in plant breeding systems is offered by sex-allocation theory. This theory assumes a trade-off between allocation of resources to the two sexual functions. It explains the high frequency of hermaphroditism in angiosperms by diminishing fitness returns on investment of more resources in a single function. Recent experimental studies provide tests of this theory by measuring male and female fitness gains, and examining the trade-off assumption. These studies show how fitness responds to shifts in allocation. Allocation traits often show heritable variation, but support for a trade-off remains weak.

引用

页码：227 / 232

页数：6

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