Molecular population genetics of the Arabidopsis CAULIFLOWER regulatory gene:: Nonneutral evolution and naturally occurring variation in floral homeotic function

被引：98

作者：

Purugganan, MD ^{[1
]}

Suddith, JI ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Genet, Raleigh, NC 27695 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1998年 / 95卷 / 14期

关键词：

development; ecotype; flower; inflorescence; MADS-box;

D O I：

10.1073/pnas.95.14.8130

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 evolution of interspecies differences in morphology requires sufficient within-species variation in developmental regulatory systems on which evolutionary forces can act. Molecular analyses of naturally occurring alleles of the Arabidopsis thaliana CAULIFLOWER locus reveal considerable intraspecific diversity at this floral homeotic gene, and the McDonald-Kreitman test suggests that this gene is evolving in a nonneutral fashion, with an excess of intraspecific replacement polymorphisms. The naturally occurring molecular variation within this floral regulatory gene is associated with functionally different alleles, which can be distinguished phenotypically by their differential ability to direct floral meristem development.

引用

页码：8130 / 8134

页数：5