Transcriptome-based variations effectively untangling the intraspecific relationships and selection signals in Xinyang Maojian tea population

dc.contributor.authorCheng, Lin
dc.contributor.authorLi, Mengge
dc.contributor.authorWang, Yachao
dc.contributor.authorHan, Qunwei
dc.contributor.authorHao, Yanlin
dc.contributor.authorQiao, Zhen
dc.contributor.authorZhang, Wei
dc.contributor.authorQiu, Lin
dc.contributor.authorGong, Andong
dc.contributor.authorZhang, Zhihan
dc.contributor.authorLi, Tao
dc.contributor.authorLuo, Shanshan
dc.contributor.authorTang, Linshuang
dc.contributor.authorLiu, Daliang
dc.contributor.authorYin, Hao
dc.contributor.authorLu, Song
dc.contributor.authorBalbuena, Tiago Santana [UNESP]
dc.contributor.authorZhao, Yiyong
dc.contributor.institutionXinyang Normal University
dc.contributor.institutionBeijing Forestry University
dc.contributor.institutionXinyang Forestry Bureau
dc.contributor.institutionNortheast Forestry University
dc.contributor.institutionGuizhou University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.abstractAs one of the world’s top three popular non-alcoholic beverages, tea is economically and culturally valuable. Xinyang Maojian, this elegant green tea, is one of the top ten famous tea in China and has gained prominence for thousands of years. However, the cultivation history of Xinyang Maojian tea population and selection signals of differentiation from the other major variety Camellia sinensis var. assamica (CSA) remain unclear. We newly generated 94 Camellia sinensis (C. sinensis) transcriptomes including 59 samples in the Xinyang area and 35 samples collected from 13 other major tea planting provinces in China. Comparing the very low resolution of phylogeny inferred from 1785 low-copy nuclear genes with 94 C. sinensis samples, we successfully resolved the phylogeny of C. sinensis samples by 99,115 high-quality SNPs from the coding region. The sources of tea planted in the Xinyang area were extensive and complex. Specifically, Shihe District and Gushi County were the two earliest tea planting areas in Xinyang, reflecting a long history of tea planting. Furthermore, we identified numerous selection sweeps during the differentiation of CSA and CSS and these positive selection genes are involved in many aspects such as regulation of secondary metabolites synthesis, amino acid metabolism, photosynthesis, etc. Numerous specific selective sweeps of modern cultivars were annotated with functions in various different aspects, indicating the CSS and CSA populations possibly underwent independent specific domestication processes. Our study indicated that transcriptome-based SNP-calling is an efficient and cost-effective method in untangling intraspecific phylogenetic relationships. This study provides a significant understanding of the cultivation history of the famous Chinese tea Xinyang Maojian and unravels the genetic basis of physiological and ecological differences between the two major tea subspecies.en
dc.description.affiliationHenan International Joint Laboratory of Tea-oil tree Biology and High Value Utilization Xinyang Normal University, Henan
dc.description.affiliationCollege of Life Sciences Xinyang Normal University, Henan
dc.description.affiliationLaboratory of Systematic Evolution and Biogeography of Woody Plants School of Ecology and Nature Conservation Beijing Forestry University
dc.description.affiliationInstitute of Forestry Science Xinyang Forestry Bureau, Henan
dc.description.affiliationCollege of Engineering and Technology Northeast Forestry University
dc.description.affiliationCollege of Agriculture Guizhou University
dc.description.affiliationDepartment of Agricultural Livestock and Environmental Biotechnology Sao Paulo State University
dc.description.affiliationUnespDepartment of Agricultural Livestock and Environmental Biotechnology Sao Paulo State University
dc.identifier.citationFrontiers in Plant Science, v. 14.
dc.relation.ispartofFrontiers in Plant Science
dc.subjectCamellia sinensis
dc.subjectnucleotide diversity
dc.subjectpopulation genetics
dc.subjectselective sweep
dc.titleTranscriptome-based variations effectively untangling the intraspecific relationships and selection signals in Xinyang Maojian tea populationen
unesp.departmentTecnologia - FCAVpt