Fitness Cost Shapes Differential Evolutionary Dynamics of Disease Resistance Genes in Cultivated and Wild Plants  

作　　者：Delfina Barabaschi Alessandro Tondelli Giampiero Valè Luigi Cattivelli 

机构地区：[1]CREA Research Centre for Genomics and Bioinformatics,Via San Protaso 302,Fiorenzuola d'Arda,29017,Italy [2]DiSIT,Dipartimento di Scienze e Innovazione Tecnologica,University of Piemonte Orientale,Piazza S.Eusebio 5,Vercelli 13100,Italy

出　　处：《Molecular Plant》2020年第10期1352-1354,共3页分子植物（英文版）

摘　　要：Polyploidy is characterized by the presence of two or more complete sets of chromosomes coming from intraspecies whole-genome duplication(i.e.,autopolyploidy)or from hybridization between distinct but related species(i.e.,allopolyploidy).Poly-ploidization is a driving force in the evolution of higher plants,most of the plant species have experienced ancient or recent genome duplication events that have led to several genome modifications,such as chromosomal reorganization,gene conversion,sub-genome dominance,alteration of gene expression patterns,and expansion/contraction of some gene families.

关 键 词：CHROMOSOMAL CONTRACTION driving 

分 类 号：Q94[生物学—植物学]