Modelling the establishment and spread of autotetraploid plants in a spatially heterogeneous environment

Li, B.H. and Xu, Xiang-Ming and Ridout, Martin S. Modelling the establishment and spread of autotetraploid plants in a spatially heterogeneous environment. Journal of Evolutionary Biology, 17 . pp. 562-573. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)

Abstract

The establishment and spread of autotetraploids from an original diploid population in a heterogeneous environment were studied using a stochastic simulation model. Specifically, we investigated the effects of heterogeneous habitats and nonrandom pollen/seed dispersal on the critical value (μ) of unreduced 2n gamete production necessary for the establishment of autotetraploids as predicted by deterministic models. Introduction of a heterogeneous environment with random pollen/seed dispersal had little effect on the μ value. In contrast, incorporating nonrandom pollen/seed dispersal into a homogeneous environment considerably reduced the μ value. Incorporating both heterogeneous habitats and nonrandom pollen/seed dispersal may lead either to an increase or to a decrease in the μ value compared to that with random dispersal, indicating that the two factors interact in a complex way.

Item Type: Article
Subjects: Q Science > QH Natural history > QH426 Genetics
Divisions: Faculties > Science Technology and Medical Studies > School of Mathematics Statistics and Actuarial Science
Depositing User: Martin S Ridout
Date Deposited: 29 Jun 2011 15:19
Last Modified: 01 May 2014 15:57
Resource URI: https://kar.kent.ac.uk/id/eprint/9061 (The current URI for this page, for reference purposes)
  • Depositors only (login required):