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Inferring the Phylogeny and Divergence of Chinese Curcuma (Zingiberaceae) in the Hengduan Mountains of the Qinghai-Tibet Plateau by Reduced Representation Sequencing

文献类型： 外文期刊

作者： Liang, Heng 1 ; Deng, Jiabin 2 ; Gao, Gang 3 ; Ding, Chunbang 1 ; Zhang, Li 4 ; Xu, Ke 5 ; Wang, Hong 6 ; Yang, Ruiwu 1 ;

作者机构： 1.Sichuan Agr Univ, Coll Life Sci, Yaan 625014, Peoples R China

2.Guizhou Educ Univ, Sch Geog & Resources, Guiyang 550018, Peoples R China

3.Yibin Univ, Coll Life Sci & Food Engn, Yibin 644000, Peoples R China

4.Sichuan Agr Univ, Coll Sci, Yaan 625014, Peoples R China

5.Sichuan Hort Crop Tech Extens Stn, Chengdu 610041, Peoples R China

6.Jiangsu Acad Agr Sci, Inst Pomol, Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Peoples R China

关键词： RRS; ipyrad; phylogeny; divergence; Curcuma

期刊名称：FORESTS （ 影响因子：2.221； 五年影响因子：2.484 ）

ISSN：

年卷期： 2021 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Clarifying the genetic relationship and divergence among Curcuma L. (Zingiberaceae) species around the world is intractable, especially among the species located in China. In this study, Reduced Representation Sequencing (RRS), as one of the next generation sequences, has been applied to infer large scale genotyping of major Chinese Curcuma species which present little differentiation of morphological characteristics and genetic traits. The 1295 high-quality SNPs (reduced-filtered SNPs) were chosen from 997,988 SNPs of which were detected from the cleaned 437,061 loci by RRS to investigate the phylogeny and divergence among eight major Curcuma species locate in the Hengduan Mountains of the Qinghai-Tibet Plateau (QTP) in China. The results showed that all the population individuals were clustered together within species, and species were obviously separated; the clustering results were recovered in PCA (Principal Component Analysis); the phylogeny was (((((C. Phaeocaulis, C. yunnanensis), C. kwangsiensis), (C. amarissima, C. sichuanensis)), C. longa), (C. wenyujin, C. aromatica)); Curcuma in China originated around similar to 7.45 Mya (Million years ago) in the Miocene, and interspecific divergence appeared at ca. 4-2 Mya, which might be sped up rapidly along with the third intense uplift of QTP.

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