Quantitative genetic variance and multivariate clines in the Ivyleaf morning glory, Ipomoea hederacea.

ABSTRACT: Clinal variation is commonly interpreted as evidence of adaptive differentiation, although clines can also be produced by stochastic forces. Understanding whether clines are adaptive therefore requires comparing clinal variation to background patterns of genetic differentiation at presumably neutral markers. Although this approach has frequently been applied to single traits at a time, we have comparatively fewer examples of how multiple correlated traits vary clinally. Here, we characterize multivariate clines in the Ivyleaf morning glory, examining how suites of traits vary with latitude, with the goal of testing for divergence in trait means that would indicate past evolutionary responses. We couple this with analysis of genetic variance in clinally varying traits in 20 populations to t

SUBMITTER: Stock AJ 

PROVIDER: S-EPMC4084544 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature