Population differentiation and genetic variation inform translocation decisions for Liatris scariosa var. novae-angliae, a rare New England grassland perennial

被引：19

作者：

Gravuer, K ^{[1
]}

von Wettberg, E ^{[1
]}

Schmitt, J ^{[1
]}

机构：

[1] Brown Univ, Dept Ecol & Evolutionary Biol, Providence, RI 02912 USA

来源：

BIOLOGICAL CONSERVATION | 2005年 / 124卷 / 02期

基金：

美国国家科学基金会;

关键词：

quantitative genetic variation; population differentiation; restoration genetics; translocation; Wright's F-statistics; Q(ST);

D O I：

10.1016/j.biocon.2005.01.021

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Augmentation of small rare species populations is sometimes suggested on genetic grounds. However, outbreeding depression via dilution of local adaptation or break-up of genomic coadaptation may occur. These effects depend on the causes of population divergence. Here, we compare genetic measures of population divergence in Liatris scariosa var. novae-angliae, a rare New England perennial. We measured G(ST), neutral marker subdivision, and Q(ST), quantitative subdivision of propagule and juvenile plant traits. G(ST) was relatively high. Q(ST) for leaf shape exceeded G(ST), indicating local adaptation, while Q(ST) for other traits fell within or below the G(ST) range. Local adaptation appears low for juvenile traits, although the high G(ST) cautions against translocation because of potential coadaptation. If translocation is still required, however, donor populations should contain high quantitative genetic diversity. We assess population size and allozyme diversity as predictors of quantitative genetic variation, but find these poor proxies for direct measurement. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：155 / 167

页数：13

共 111 条

[11]

[12]

CAMPBELL RK, 1986, SILVAE GENET, V35, P85

[13]

CAMPBELL RK, 1989, 407 USDA FOR SERV

[14] Maintenance of the alcohol dehydrogenase polymorphism in Tiger Salamanders, II. Differences in biochemical function among allozymes [J].