Open AccessGenetic Variation in Echinacea angustifolia Along a Climatic Gradient
Author(s) -
David W. Still,
D.-H. Kim,
Natsuyo Aoyama
Publication year - 2005
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mci199
Subject(s) - biology , genetic distance , mantel test , isolation by distance , genetic variation , genetic structure , population , ecotone , amplified fragment length polymorphism , ecology , shrub , genetic diversity , demography , genetics , sociology , gene
Echinacea angustifolia is a widespread species distributed throughout the Great Plains region of North America. Genetic differentiation among populations was investigated along a 1500 km north-south climatic gradient in North America, a region with no major geographical barriers. The objective of the study was to determine if genetic differentiation of populations could be explained by an isolation-by-distance model or by associations with climatic parameters known to affect plant growth and survival.