HOMOEOLOGOUS HETEROZYGOSITY AND RECOMBINATION IN THE FERN PTERIDIUM-AQUILINUM

被引:35
作者
CHAPMAN, RH [1 ]
KLEKOWSKI, EJ [1 ]
SELANDER, RK [1 ]
机构
[1] UNIV ROCHESTER,DEPT BIOL,ROCHESTER,NY 14627
关键词
D O I
10.1126/science.204.4398.1207
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
The bracken fern, Pteridium aquilinum, which can form completely homozygous zygotes in a single generation of self-fertilization, has a genetic system that allows the storage and release of genetic variability in spite of this homozygosity. Analysis of the distribution of electrophoretically demonstrable genetic markers demonstrates that this system is based on recombination between duplicated, unlinked loci. Copyright © 1979 AAAS.
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页码:1207 / 1209
页数:3
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