Molecular genecology of temperature response in Lolium perenne:: 1.: preliminary analysis to reduce false positives

被引：20

作者：

Hamilton, NRS ^{[1
]}

Skot, L ^{[1
]}

Chorlton, KH ^{[1
]}

Thomas, ID ^{[1
]}

Mizen, S ^{[1
]}

机构：

[1] AFRC, Inst Grassland & Environm Res, Aberystwyth SY23 3EB, Ceredigion, Wales

来源：

MOLECULAR ECOLOGY | 2002年 / 11卷 / 09期

关键词：

cold tolerance; false positives; genecology; genetic resources; molecular markers; ryegrass;

D O I：

10.1046/j.1365-294X.2002.01567.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Molecular genecology is the study of geographical clines in frequencies of molecular markers and their relationship to ecological clines in environmental conditions. This study outlines the principles underlying the selection of populations, focusing on avoiding 'false positives'- noncausal correlations between allele frequency and the environment. The principles are illustrated by identifying a set of populations of Lolium perenne for the study of temperature responses. The selected set of populations encompasses a 20 degreesC range in mean January temperature. Their freezing tolerance shows a linear trend with winter temperature, LT50 decreasing by 0.25 degreesC for each 1 degreesC reduction in mean January temperature.

引用

页码：1855 / 1863

页数：9