High outcrossing and random pollen dispersal in a planted stand of Acacia saligna subsp saligna revealed by paternity analysis using microsatellites

Melissa Millar, Margaret Byrne, I Nuberg, M Sedgley

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The mating system, patterns of pollen mediated gene flow and levels of genetic contamination were investigated in a planted stand of Acacia saligna subsp. saligna via paternity analysis using microsatellite markers. High levels of outcrossing were detected within the stand (t (m)=0.98), and the average pollen dispersal distance was 37 m with the majority of progeny sired by paternal trees within a 50-m neighbourhood of the maternal tree. Genetic contamination from the natural background population of A. saligna subsp. lindleyi was detected in 14% of the progeny of A. saligna subsp. saligna and varied among maternal trees. Long distance inter-subspecific pollen dispersal was detected for distances of over 1,500 m. The results provide information for use in the breeding and domestication programme aimed at developing A. saligna as an agroforestry crop for the low rainfall areas of southern Australia.
Original languageEnglish
Pages (from-to)367-377
JournalTREE GENETICS & GENOMES
Volume4
DOIs
Publication statusPublished - 2008

Fingerprint

Acacia saligna
Acacia
pollen flow
outcrossing
paternity
Pollen
Microsatellite Repeats
pollen
microsatellite repeats
Mothers
Gene Flow
domestication
agroforestry
reproductive strategy
gene flow
Breeding
breeding
mating systems
rainfall
crop

Cite this

@article{73a91ca9091e42f694d8bd3046b49593,
title = "High outcrossing and random pollen dispersal in a planted stand of Acacia saligna subsp saligna revealed by paternity analysis using microsatellites",
abstract = "The mating system, patterns of pollen mediated gene flow and levels of genetic contamination were investigated in a planted stand of Acacia saligna subsp. saligna via paternity analysis using microsatellite markers. High levels of outcrossing were detected within the stand (t (m)=0.98), and the average pollen dispersal distance was 37 m with the majority of progeny sired by paternal trees within a 50-m neighbourhood of the maternal tree. Genetic contamination from the natural background population of A. saligna subsp. lindleyi was detected in 14{\%} of the progeny of A. saligna subsp. saligna and varied among maternal trees. Long distance inter-subspecific pollen dispersal was detected for distances of over 1,500 m. The results provide information for use in the breeding and domestication programme aimed at developing A. saligna as an agroforestry crop for the low rainfall areas of southern Australia.",
author = "Melissa Millar and Margaret Byrne and I Nuberg and M Sedgley",
year = "2008",
doi = "10.1007/s11295-007-0115-z",
language = "English",
volume = "4",
pages = "367--377",
journal = "TREE GENETICS & GENOMES",
issn = "1614-2942",
publisher = "Springer Heidelberg",

}

TY - JOUR

T1 - High outcrossing and random pollen dispersal in a planted stand of Acacia saligna subsp saligna revealed by paternity analysis using microsatellites

AU - Millar, Melissa

AU - Byrne, Margaret

AU - Nuberg, I

AU - Sedgley, M

PY - 2008

Y1 - 2008

N2 - The mating system, patterns of pollen mediated gene flow and levels of genetic contamination were investigated in a planted stand of Acacia saligna subsp. saligna via paternity analysis using microsatellite markers. High levels of outcrossing were detected within the stand (t (m)=0.98), and the average pollen dispersal distance was 37 m with the majority of progeny sired by paternal trees within a 50-m neighbourhood of the maternal tree. Genetic contamination from the natural background population of A. saligna subsp. lindleyi was detected in 14% of the progeny of A. saligna subsp. saligna and varied among maternal trees. Long distance inter-subspecific pollen dispersal was detected for distances of over 1,500 m. The results provide information for use in the breeding and domestication programme aimed at developing A. saligna as an agroforestry crop for the low rainfall areas of southern Australia.

AB - The mating system, patterns of pollen mediated gene flow and levels of genetic contamination were investigated in a planted stand of Acacia saligna subsp. saligna via paternity analysis using microsatellite markers. High levels of outcrossing were detected within the stand (t (m)=0.98), and the average pollen dispersal distance was 37 m with the majority of progeny sired by paternal trees within a 50-m neighbourhood of the maternal tree. Genetic contamination from the natural background population of A. saligna subsp. lindleyi was detected in 14% of the progeny of A. saligna subsp. saligna and varied among maternal trees. Long distance inter-subspecific pollen dispersal was detected for distances of over 1,500 m. The results provide information for use in the breeding and domestication programme aimed at developing A. saligna as an agroforestry crop for the low rainfall areas of southern Australia.

U2 - 10.1007/s11295-007-0115-z

DO - 10.1007/s11295-007-0115-z

M3 - Article

VL - 4

SP - 367

EP - 377

JO - TREE GENETICS & GENOMES

JF - TREE GENETICS & GENOMES

SN - 1614-2942

ER -