Reproductive and genetic consequences of extreme isolation in Salix herbacea L. at the rear edge of its distribution

At the rear edge of the distribution of species, extreme isolation and small population size influence the genetic diversity and differentiation of plant populations. This may be particularly true for Arctic-alpine species in mid-latitude mountains, but exactly how peripherality has shaped their gen...

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Bibliographic Details
Published in:Annals of Botany
Main Authors: Carbognani, M, Piotti, A, Leonardi, S, Pasini, L, Spanu, I, Vendramin, G G, Tomaselli, M, Petraglia, A
Format: Article in Journal/Newspaper
Language:English
Published: 2019
Subjects:
Salix herbacea
Fragmentation
clonal growth
gene flow
genetic diversity
isolation
marginality
microsatellite marker
peripherality
sex ratio
snowbed
spatial genetic structure
Arctic
Online Access:http://hdl.handle.net/11381/2867171
https://doi.org/10.1093/aob/mcz129
Description
Summary:At the rear edge of the distribution of species, extreme isolation and small population size influence the genetic diversity and differentiation of plant populations. This may be particularly true for Arctic-alpine species in mid-latitude mountains, but exactly how peripherality has shaped their genetic and reproductive characteristics is poorly investigated. The present study, focused on Salix herbacea, aims at providing new insights into the causes behind ongoing demographic dynamics and their consequences for peripheral populations of Arctic-alpine species.

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