INFLUENCE OF ENVIRONMENTAL-QUALITY ON POLLEN COMPETITIVE ABILITY IN WILD RADISH

被引:157
作者
YOUNG, HJ [1 ]
STANTON, ML [1 ]
机构
[1] UNIV CALIF DAVIS,DEPT BOT,DAVIS,CA 95616
关键词
D O I
10.1126/science.248.4963.1631
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
Pollen of Raphanus raphanistrum produced under low nutrient conditions sired fewer seeds than pollen produced under better conditions when the two types were applied on a stigma together. No difference was seen in single-donor crosses. Male mating success can be strongly influenced by the environmental conditions of pollen-bearing plants, a factor overlooked in studies of plant reproductive biology and in standard quantitative genetic crossing designs, where effects of male parent are equated with heritable genetic variation.
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页码:1631 / 1633
页数:3
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