Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (28): 36-40.doi: 10.11924/j.issn.1000-6850.casb2022-0439

Special Issue: 生物技术 园艺

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Genetic Background Analysis of ‘Hetian’ Rose Based on DNA Sequence

SONG Yao(), WANG Hui()   

  1. Shanghai Botanical Garden/ Shanghai Engineering Research Center of Sustainable Plant Innovation, Shanghai 200231
  • Received:2022-06-06 Revised:2022-07-12 Online:2022-10-05 Published:2022-09-28
  • Contact: WANG Hui E-mail:02123782@163.com;wanghui@shbg.org

Abstract:

‘Hetian’ rose is one of the main cultivated rose varieties in China, but its unclear genetic background is not conducive to product development and application. The suspected proximologous species of ‘Hetian’ rose were selected for this study, by using sequence alignment method and constructing the phylogenetic tree, we analyzed the genetic relationship of the varieties and clarified their genetic background. The results showed that the polymorphism of ITS sequence was high, especially ITS2 sequence, which could obtain more genetic information. Based on ITS2 sequence, ‘Hetian’ rose and Rosa gallica clustered into a small branch, indicating that their genetic relationship was close. The polymorphism of atpB-rbcL sequence was low among the tested plant materials, but it could reflect the maternal information. ‘Hetian’ rose was in the same branch with Rosa gallica, Rosa centifolia, Rosa phoenicia and Rosa rugosa. Combined with the clustering results of ITS, the study presumed Rosa gallica to be the female parent of ‘Hetian’ rose which had the common parental origin with Rosa damascena.

Key words: ‘Hetian’ rose, ITS, atpB-rbcL, clustering analysis, genetic relationship

CLC Number: