Gen-morph species concept-A new and integrative species concept for outbreeding organisms  

作　　者：De-Yuan Hong 

机构地区：[1]State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China

出　　处：《Journal of Systematics and Evolution》2020年第5期725-742,共18页植物分类学报（英文版）

基　　金：A key grant for the work on peonies was given by the National Natural Science Foundation of China(NSFS30121003)。

摘　　要：The present article briefly reviewed the previling species concepts,especially biological,genetic,evolutionary,phylogenetic,ecological,and several taxonomic speqies concepts.The former five reflect the properties of species from diverse aspects and in different degrees,while taxonomic species concepts all contain more or less subjective elements,except for Hedberg's taxonomic method(not specles concept).So far,there is no species concept that is both theretically rati onal and practically operable.The present article outlined recent studies on the genus Paeonia L.(Paeoniaceae)in biology,particularly in morphology,biogeography,molecular phylogeny,and reproductive behavior,which provided insight into the relationship between variation of morphological characterstics and phylogeny.Taking the study on Paeonia L.as a case,referring to studies on some other plant groups,and incorporating the merits of the prevalling species concepts into our consideration,"gen-morph species concept"is proposed here formally as new for outbreeding organisms.The new species concept has three special features:()a bridge linking morphological aspect with genetic and other aspects of species;(i)proposal of a concrete morphologlcal criterion for species definition,and(ii)considering quantitative and qualitative characteristics as equally valuable for species definition and introducing statistics into the concept to handle such characterlstics.Therefore,the gen-morph species concept is an integrative specles concept,both theoretically objective and practically operable.

关 键 词：continuous or discontinwous varlations Cross compatible gene flow isolation LINEAGE MONOPHYLY outbreeding onganism Paeonla L statistics. 

分 类 号：Q94[生物学—植物学]