62份建兰种质表型多样性分析与综合评价.pdfVIP

分子植物育种4年，第22卷，第21期，第7132-7141页

MolecularPlantI21,7132-7141

研究报告

ResearchReport

62份建兰种质表型多样性分析与综合评价

傅巧娟*走

赵福康张晓莹李春楠阮若昕

杭州市农业科学研究院，杭州，310024

*通信作者,fqjwxj@126.com

摘要为了提高建兰(Cymbidiumensifolium)

行了遗传多样性分析。结果表明，建兰种质资源表型多样性丰富。数量性状变异程度较高，变异系数(Cv)为

15.6%~30.0%,其中花朵长度Cv值最高。质量性状Shannon-Weaver多样性指数(D)

状的I值均较高；叶片无扭曲无叶艺、花青武无显色和萼片、花瓣、唇瓣及蕊柱等“有”斑点居多。主成分分析

份种质以素心的为主，第二大类的花色、花纹多样性丰富。研究结果为更好地了解和利用建兰种质提供了理

论依据。

关键词建兰(Cymbidiumensifolium);表型多样性；综合评价

PhenotypicDiversityAnalysisandComprehensiveEvaluationof62

CymbidiumensifoliumResources

FuQiaojuan*ZhaoFukangZhangXiaoyingLiChunnanRuanRuoxin

HangzhouAcademyofAgriculturalSciences,Hangzhou,310024

*Corresjoondwxj@126.com

D0l.1012271/:mnh002007120

AbstractToimprovetheutilizationefficiencyofC.ensifoliumgermplasms,geneticdiversityanalysiswere

conductedbasedon41phenotypictraitsof62C.ensifoliumgermplasms.Theresultsshowedthatthephenotypic

diversityofC.ensifoliumgermplasmswasrichandthevariationofquantitativecharacterswashigh.The

coefficientofvariation(Cv)rangedfrom15.6%to30.0%,andthehighestvalueofCvwasdetectedinflower

length.TheShannon-Weaverindexes(1)ofqualitativetraitsrangedfrom0.19to1.72,andtheIvalueofall

thecolorcharacterswashigher;leaveswithnocuringandart,peduncleanthocyanincolorationwithnocolor,

sepals,petals,lipsandcolumnswithspots.11principalcomponentswereextractedbyprincipalcomponent

analysis(PCA),thecumulativecontributionratereached79.421%,whichcouldreflecttheintegralphenotypeof

C.ensifoliumgermplasms.AlltheresourceswerecomprehensivelyassessedbymeansofPCA,andC.ensifolium

Hongcaohonghehadthebestcomprehensiveperformance.Basedonclusteranalysis,alltheaccessionswere

classifiedintotwomajorgroupswhentheEuclideandistancewas8.4.Thefirstcategoryincluded23C.ensifolium

germp