ANTIBIOTICS CAUSE PARTHENOGENETIC TRICHOGRAMMA (HYMENOPTERA, TRICHOGRAMMATIDAE) TO REVERT TO SEX

被引:354
作者
STOUTHAMER, R
LUCK, RF
HAMILTON, WD
机构
[1] UNIV CALIF RIVERSIDE,DEPT ENTOMOL,RIVERSIDE,CA 92521
[2] UNIV OXFORD,DEPT ZOOL,OXFORD OX1 3PS,ENGLAND
关键词
arrhenotoky; symbionts; thelytoky;
D O I
10.1073/pnas.87.7.2424
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Completely parthenogenetic Trichogramma wasps can be rendered permanently bisexual by treatment with three different antibiotics or high temperatures. The evidence strongly suggests that maternally inherited microorganisms cause parthogenesis in these wasps. Theories predict female-biased sex ratio in offspring under the influence of maternally inherited symbionts, but extreme sex ratios of 100% females were never considered because the lack of males would prevent the host's reproduction.
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页码:2424 / 2427
页数:4
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