Details

Title

Hybridization Processes in Putative Hybrid Swarms of Scots Pine and Mountain Dwarf Pine as Revealed by Chloroplast DNA

Journal title

Acta Biologica Cracoviensia s. Botanica

Yearbook

2014

Numer

No 2

Publication authors

Divisions of PAS

Nauki Biologiczne i Rolnicze

Abstract

Abstract Gene flow among individual trees of Pinus sylvestris and P. mugo putative hybrid swarms in Slovakia was fol-lowed at four localities using the species-diagnostic cpDNA trnV-trnH/Hinf I restriction profile. Variable proportions of P. sylvestris and P. mugo haplotypes were revealed among the sampled localities. Low between-habitus consistency of the trees and their cpDNA haplotypes indicates the hybrid nature of the swarms. Molecular analy-sis based on mutual comparison of the haplotypes of a given tree and its embryos suggests direct and recipro-cal hybridization between trees of the P. sylvestris and P. mugo haplotypes. Besides conspecific embryos resulting from hybridization of trees with the same haplotype (P. sylvestris × P. sylvestris and P. mugo × P. mugo), hybrid embryos of P. sylvestris × P. mugo (8.03%) and P. mugo × P. sylvestris (11.50%) were also detected in open-pollinated offspring. The results are discussed from the standpoint of primary and introgressive hybridization between the parental species.

Publisher

Biological Commission of the Polish Academy of Sciences – Cracow Branch

Date

2015[2015.01.01 AD - 2015.12.31 AD]

Identifier

ISSN 0001-5296 ; eISSN 1898-0295

DOI

10.2478/abcsb-2014-0025

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