Evolutionary history of Purple cone spruce (Picea purpurea) in the Qinghai–Tibet Plateau: homoploid hybrid origin and Pleistocene expansion

• Published in: Molecular ecology Vol. 23; no. 2; pp. 343 - 359
• Main Authors: Sun, Yongshuai, Abbott, Richard J, Li, Lili, Li, Long, Zou, Jiabin, Liu, Jianquan
• Format: Journal Article
• Language: English
• Published: England Blackwell Publishing Ltd 01.02.2014
• Subjects: alleles; Bayes Theorem; Biological Evolution; Cell Nucleus - genetics; chloroplast DNA; chloroplasts; Deoxyribonucleic acid; diploidy; DNA; DNA, Chloroplast - genetics; DNA, Mitochondrial - genetics; DNA, Plant - genetics; Ecosystem; Evolutionary biology; Genetic diversity; Genetic Linkage; Genetic Variation; Genetics, Population; Genotype; Glaciation; homoploid hybrid speciation; Hybridization; Hybridization, Genetic; hybrids; introgression; loci; mitochondrial DNA; Models, Genetic; Molecular Sequence Data; Niches; Phylogeny; Picea; Picea - classification; Picea - genetics; Picea purpurea; Plant ecology; plateaus; Pleistocene; Pleistocene expansion; Qinghai-Tibet Plateau; Sequence Analysis, DNA; Speciation; Tibet; Trees; Tibet; homoploid hybrid speciation; hybridization; Qinghai‐Tibet Plateau; introgression; Pleistocene expansion; Picea

Hybridization and introgression can play an important role in speciation. Here, we examine their roles in the origin and evolution of Picea purpurea, a diploid spruce species occurring on the Qinghai–Tibet Plateau (QTP). Phylogenetic relationships and ecological differences between this species and...