Macro- and micro-geographical genetic variation in early-fitness traits in populations of maritime pine (Pinus pinaster).

ABSTRACT:

Background and aims

Assessing adaptive genetic variation and its spatial distribution is crucial to conserve forest genetic resources and manage species' adaptive potential. Macro-environmental gradients commonly exert divergent selective pressures that enhance adaptive genetic divergence among populations. Steep micro-environmental variation might also result in adaptive divergence at finer spatial scales, even under high gene flow, but it is unclear how often this is the case. Here, we assess genetic variation in early-fitness traits among distant and nearby maritime pine (Pinus pinaster) populations, to investigate climatic factors associated with trait divergence, and to examine trait integration during seedling establishment.

Methods

Open pollinated seeds were collected

SUBMITTER: Sole-Medina A 

PROVIDER: S-EPMC11904904 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature