Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum

Sixty-eight simple sequence repeat (SSR) primer pairs were designed based on the transcriptome data of Cymbidium faberi and 25 primer pairs with stable amplification and better polymorphism were selected for genetic diversity analysis of 41 C. hybridum cultivars. The results showed that a total of 1...

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Main Authors: SHEN Hongzhe, LI Chunnan, FU Qiaojuan, CUI Hairui
Format: Article
Language:English
Published: Zhejiang University Press 2022-02-01
Series:浙江大学学报. 农业与生命科学版
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Online Access:https://www.academax.com/doi/10.3785/j.issn.1008-9209.2021.03.082
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author SHEN Hongzhe
LI Chunnan
FU Qiaojuan
CUI Hairui
author_facet SHEN Hongzhe
LI Chunnan
FU Qiaojuan
CUI Hairui
author_sort SHEN Hongzhe
collection DOAJ
description Sixty-eight simple sequence repeat (SSR) primer pairs were designed based on the transcriptome data of Cymbidium faberi and 25 primer pairs with stable amplification and better polymorphism were selected for genetic diversity analysis of 41 C. hybridum cultivars. The results showed that a total of 187 SSR bands were amplified, and 171 (91.44%) of them were polymorphic with the average of 6.84 bands per primer pair. The mean value of polymorphism information content (PIC) and the number of genotypes per SSR marker were 0.770 3 and 12.88, respectively. Genetic similarity coefficient among 41 cultivars ranged from 0.57 to 0.99 with an average of 0.72. A dendrogram of genetic relationship constructed using unweighted pair-group method with arithmetic mean (UPGMA) showed that the tested accessions could be classified into five clustering groups with the similarity coefficient of 0.71, which were consistent to some extent with the plant size, branch type and flower color. The above results reveal the genetic diversity and relationships among the tested accessions. The newly developed SSR markers will be useful tools for molecular breeding of C.hybridum.
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institution Kabale University
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2097-5155
language English
publishDate 2022-02-01
publisher Zhejiang University Press
record_format Article
series 浙江大学学报. 农业与生命科学版
spelling doaj-art-1d7ea0f0173440ac9dcc5aed15d4e24c2025-08-20T03:32:05ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552022-02-0148212810.3785/j.issn.1008-9209.2021.03.08210089209Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridumSHEN HongzheLI ChunnanFU QiaojuanCUI HairuiSixty-eight simple sequence repeat (SSR) primer pairs were designed based on the transcriptome data of Cymbidium faberi and 25 primer pairs with stable amplification and better polymorphism were selected for genetic diversity analysis of 41 C. hybridum cultivars. The results showed that a total of 187 SSR bands were amplified, and 171 (91.44%) of them were polymorphic with the average of 6.84 bands per primer pair. The mean value of polymorphism information content (PIC) and the number of genotypes per SSR marker were 0.770 3 and 12.88, respectively. Genetic similarity coefficient among 41 cultivars ranged from 0.57 to 0.99 with an average of 0.72. A dendrogram of genetic relationship constructed using unweighted pair-group method with arithmetic mean (UPGMA) showed that the tested accessions could be classified into five clustering groups with the similarity coefficient of 0.71, which were consistent to some extent with the plant size, branch type and flower color. The above results reveal the genetic diversity and relationships among the tested accessions. The newly developed SSR markers will be useful tools for molecular breeding of C.hybridum.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2021.03.082<italic>Cymbidium hybridum</italic> simple sequence repeatgenetic diversitycluster analysis
spellingShingle SHEN Hongzhe
LI Chunnan
FU Qiaojuan
CUI Hairui
Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
浙江大学学报. 农业与生命科学版
<italic>Cymbidium hybridum</italic>
simple sequence repeat
genetic diversity
cluster analysis
title Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
title_full Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
title_fullStr Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
title_full_unstemmed Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
title_short Analysis of germplasm resources by simple sequence repeat markers in Cymbidium hybridum
title_sort analysis of germplasm resources by simple sequence repeat markers in cymbidium hybridum
topic <italic>Cymbidium hybridum</italic>
simple sequence repeat
genetic diversity
cluster analysis
url https://www.academax.com/doi/10.3785/j.issn.1008-9209.2021.03.082
work_keys_str_mv AT shenhongzhe analysisofgermplasmresourcesbysimplesequencerepeatmarkersincymbidiumhybridum
AT lichunnan analysisofgermplasmresourcesbysimplesequencerepeatmarkersincymbidiumhybridum
AT fuqiaojuan analysisofgermplasmresourcesbysimplesequencerepeatmarkersincymbidiumhybridum
AT cuihairui analysisofgermplasmresourcesbysimplesequencerepeatmarkersincymbidiumhybridum