Stomatal size in fossil plants: evidence for polyploidy in majority of angiosperms
1994
Masterson, J.
Three published estimates of the frequency of polyploidy in angiosperms (30 to 35 percent, 47 percent, and 70 to 80 percent) were tested by estimating the genome size of extinct woody angiosperms with the use of fossil guard cell size as a proxy for cellular DNA content. The inferred chromosome numbers of these extinct species suggest that seven to nine is the primitive haploid chromosome number of angiosperms and that most angiosperms (approximately 70 percent) have polyploidy in their history.
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书目信息
Science
卷
264
期
5157
页码
421
- 424
ISSN
0036-8075
出版者
Springer International Publishing
语言
英语
注释
2019-12-04
类型
Journal Article; Text
2024-02-28
MODS