Phylogeography of Japanese horse chestnut (Aesculus turbinata) in the Japanese Archipelago based on chloroplast DNA haplotypes

Japanese horse chestnut (Aesculus turbinata: Hippocastanaceae) is one of the typical woody plants that grow in temperate riparian forests in the Japanese Archipelago. To analyze the phylogeography of this plant in the Japanese Archipelago, we determined cpDNA haplotypes for 337 samples from 55 popul...

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Bibliographic Details
Published in:Journal of plant research 2011-01, Vol.124 (1), p.75-83
Main Authors: Sugahara, Kanako, Kaneko, Yuko, Ito, Satoshi, Yamanaka, Keisuke, Sakio, Hitoshi, Hoshizaki, Kazuhiko, Suzuki, Wajiro, Yamanaka, Norikazu, Setoguchi, Hiroaki
Format: Article
Language:English
Subjects:
Aesculus - genetics
Aesculus turbinata
Archipelagoes
Base Sequence
Biogeography
Biomedical and Life Sciences
Chloroplast DNA
DNA, Chloroplast - genetics
Genetic diversity
Genetic Variation
Geography
Habitat
Haplotype
Haplotypes
Haplotypes - genetics
Hippocastanaceae
Japan
Japanese horse chestnut
Life Sciences
Molecular Sequence Data
Mountain regions
Nucleotides - genetics
Oscillations
Phylogenetics
Phylogeography
Plant Biochemistry
Plant Ecology
Plant Physiology
Plant populations
Plant Sciences
Population genetics
Quaternary
refuge habitats
Regular Paper
Riparian forests
Spacer
Spatial analysis
Temperate forests
Trees
Woody plants
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Summary:Japanese horse chestnut (Aesculus turbinata: Hippocastanaceae) is one of the typical woody plants that grow in temperate riparian forests in the Japanese Archipelago. To analyze the phylogeography of this plant in the Japanese Archipelago, we determined cpDNA haplotypes for 337 samples from 55 populations covering the entire distribution range. Based on 1,313 bp of two spacers, we determined ten haplotypes that are distinguished from adjacent haplotypes by one or two steps. Most of the populations had a single haplotype, suggesting low diversity. Spatial analysis of molecular variance suggested three obvious phylogeographic structures in western Japan, where Japanese horse chestnut is scattered and isolated in mountainous areas. Conversely, no clear phylogeographic structure was observed from the northern to the southern limit of this species, including eastern Japan, where this plant is more common. Rare and private haplotypes were also found in southwestern Japan, where Japanese horse chestnuts are distributed sparsely. These findings imply that western Japan might have maintained a relatively large habitat for A. turbinata during the Quaternary climatic oscillations, while northerly regions could not.
ISSN:0918-9440
1618-0860
DOI:10.1007/s10265-010-0356-z