Application of atpB-rbcL noncoding spacer in the phylogeny of stone fruit crops
WANG Hua-kun
TAO Jian-min
QU Shen-chun
MA Rui-juan
FANG Jing-gui
LOU Xiao-ming
ZHANG Zhen
Abstract：In order to reconstruct phylogeny of main stone fruit trees,the atpB-rbcL noncoding spacers of chloroplast DNA from 24 genotypes of peach (Amygdalus persica L.),plum (Prunus salicina Lindl.),apricot (Armeniaca vulgaris Lam.),mei (Armeniaca mume Sieb.) and cherry (Cerasus avium Moench.),4-5 genotypes per species,were sequenced and analyzed. Using Prunus zippeliana as outgroup,the data matrix was tested for scores using 56 evolution models with PAUP,and then the scores were used to screen the best model and parameters with Modeltest. The calculation of the genetic distances and variances and the construction of maximum parsimony tree were done with Mega. The result indicated: molecular evolution rates were different among these 5 stone fruit crops and the distribution of genetic variance was unbalanced;cherry was a less evolutional species than other four;mei, plum, and apricot were phylogenetically close,among which mei was closest to apricot;in the monophyletic group of stone fruit crops,two clades were formed, suggesting that one ancestry plant bi-directionally evolved to cherry and the other four stone fruit crops.
Keywords：Stone fruitsPhylogenyatpB-rbcLMolecular evolution
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 213-220 )