IS INTERSEXUALITY A COST OF ENVIRONMENTAL SEX DETERMINATION IN GAMMARUS-DUEBENI

被引：28

作者：

DUNN, AM ^{[1
]}

ADAMS, J ^{[1
]}

SMITH, JE ^{[1
]}

机构：

[1] UNIV LEEDS,DEPT PURE & APPL BIOL,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

JOURNAL OF ZOOLOGY | 1993年 / 231卷

关键词：

D O I：

10.1111/j.1469-7998.1993.tb01926.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Three possible causes of intersexuality in Gammarus duebeni, a crustacean with environmental sex determination, were investigated. Intersexuality appears to be a cost of the flexible sex determining mechanism of this species: the occurrence of intersexes is influenced by photoperiod, which also cues sex determination. Intersexuality is heritable: intersex mothers produce more intersex offspring than do true females. Parasitism by a feminizing microsporidian is ruled out as a significant cause of intersexuality.

引用

页码：383 / 389

页数：7

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