Adaptability of Rhododendrons in high altitude habitats  

作　　者：Shruti Choudhary Sapna Thakur Aasim Majeed Pankaj Bhardwaj 

机构地区：[1]Molecular Genetics Laboratory,Department of Plant Sciences,Central University of Punjab,City Campus,Mansa Road,Bathinda 151001,India

出　　处：《Journal of Forestry Research》2021年第2期449-460,共12页林业研究（英文版）

基　　金：supported by the University Grants Commission,India(File No.:BSR-UGC 30-13/2014);the Department of Science and Technology-Science and the Engineering Research Board,India(File No.:SB\FT\LS-182\2012 dated 26.04.2013).

摘　　要：Tree species dominate many ecosystems throughout the world and their response to climate,in light of global warming,is a matter of primary concern.This review describes past and ongoing research in Rhododendron,an ecologically important and well-adapted genus of more than 1000 species,occupying diverse habitats.Research to date indicates survival ability and mechanisms,with an emphasis on cold tolerance.The capability of longdistance gene flow in these species increases their genetic variability which in turn enhances their adaptability to newer niches as well as to environmental gradients(mainly temperature).Attempts to explain the molecular basis of morphological and behavioural changes in Rhododendron against cold-induced damage has been made.Gradual advances in‘omics’have led to an enriched genomic resource dissecting the role and interaction of multiple molecular factors participating in cold adaptability.However,fewer genetic studies are available on species with an inherent or a default cold-tolerance ability.Considering this fact,understanding specific features of an adapted species can provide insights on overriding the effects of desiccation and determining phase transitions in other plants as well.We propose to integrate ecological and evolutionary studies with functional genomics to improve predictions of tree responses to their environment.

关 键 词：RHODODENDRON ADAPTATION FROST GROWTH Geographical distribution 

分 类 号：Q948.1[生物学—植物学]