华北农学报
華北農學報
화북농학보
ACTA AGRICULTURAE BOREALI-SINICA
2014年
4期
121-125
,共5页
芦笋%ISSR%聚类分析%遗传多样性
蘆筍%ISSR%聚類分析%遺傳多樣性
호순%ISSR%취류분석%유전다양성
Asparagus%ISSR%Cluster analysis%Genetic diversity
利用ISSR技术,对收集自5个国家的43份芦笋品种进行了遗传多样性分析,旨在为芦笋育种工作提供更多的参考数据。试验结果表明,18条引物共扩增条带159条,其中,多态性条带121条,多态性比率为76.10%。用软件PopGene 1.32计算出供试芦笋的观察等位基因数为2,有效等位基因数为1.4443,Nei′s基因多样性指数为0.2654, Shannon信息指数为0.4114。根据公式计算得出,多态性信息指数(PIC)为0.317~0.840,平均为0.669;基因组的平均遗传丰富度为5.17,表明供试芦笋具有较高的遗传多样性。利用NTSYS 2.10e软件进行相似系数分析,构建聚类树状图,在相似系数0.77处划线,可将样品划分为8个类群,其中,江西的JK104、西班牙的Pacific Peak、山东的082单独聚为一类,在其余分类中,美国与江西、美国与荷兰、荷兰与北京的一些品种间表现出较高的相似性。
利用ISSR技術,對收集自5箇國傢的43份蘆筍品種進行瞭遺傳多樣性分析,旨在為蘆筍育種工作提供更多的參攷數據。試驗結果錶明,18條引物共擴增條帶159條,其中,多態性條帶121條,多態性比率為76.10%。用軟件PopGene 1.32計算齣供試蘆筍的觀察等位基因數為2,有效等位基因數為1.4443,Nei′s基因多樣性指數為0.2654, Shannon信息指數為0.4114。根據公式計算得齣,多態性信息指數(PIC)為0.317~0.840,平均為0.669;基因組的平均遺傳豐富度為5.17,錶明供試蘆筍具有較高的遺傳多樣性。利用NTSYS 2.10e軟件進行相似繫數分析,構建聚類樹狀圖,在相似繫數0.77處劃線,可將樣品劃分為8箇類群,其中,江西的JK104、西班牙的Pacific Peak、山東的082單獨聚為一類,在其餘分類中,美國與江西、美國與荷蘭、荷蘭與北京的一些品種間錶現齣較高的相似性。
이용ISSR기술,대수집자5개국가적43빈호순품충진행료유전다양성분석,지재위호순육충공작제공경다적삼고수거。시험결과표명,18조인물공확증조대159조,기중,다태성조대121조,다태성비솔위76.10%。용연건PopGene 1.32계산출공시호순적관찰등위기인수위2,유효등위기인수위1.4443,Nei′s기인다양성지수위0.2654, Shannon신식지수위0.4114。근거공식계산득출,다태성신식지수(PIC)위0.317~0.840,평균위0.669;기인조적평균유전봉부도위5.17,표명공시호순구유교고적유전다양성。이용NTSYS 2.10e연건진행상사계수분석,구건취류수상도,재상사계수0.77처화선,가장양품화분위8개류군,기중,강서적JK104、서반아적Pacific Peak、산동적082단독취위일류,재기여분류중,미국여강서、미국여하란、하란여북경적일사품충간표현출교고적상사성。
The genetic diversity of 43 asparagus cultivars collected from 5 countries was analyzed by ISSR method in order to provide more data reference for asparagus breeding .The results show that a total of 159 bands were amplified by PCR with 18 primers ,among which 121 bands were polymorphic .The percentage of polymorphism was 76 .10%.For these asparagus , the observed number of alleles was 2 , the effective number of alleles was 1.444 3,the Nei′s gene diversity was 0.265 4,and the Shannon′s information index was 0.411 4.Calculated using the formula,the average polymorphism index content (PIC) was 0.669,ranged from 0.317 to 0.840.The genomic average genetic richness was 5 .17 .This indicates that the genetic diversity in the tested materials with high perform-ance .The genetic similarity coefficient was analyzed ,and a tree diagram was constructed by NTSYS 2 .10 e software . UPGMA cluster analysis showed that these cultivars could be categorized eight groups according to coefficient 0.77. The cultivars JK104 from Jiangxi,Pacific Peak from Spain and 082 from Shandong were respectively identified as different single group .In other group ,the genetic similarity between the cultivars from American and Jiangxi ,Ameri-can and Holland ,Holland and Beijing were relatively high .