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Genome-wide association study, population structure, and genetic diversity of the tea plant in Guizhou Plateau.
Wang, Yihan; Niu, Suzhen; Deng, Xinyue; Bai, Dingchen; Chen, Zhengwu; Deng, Xiuling; Huang, Dejun.
Afiliación
  • Wang Y; College of Tea Science, Guizhou University, Guiyang, Guizhou Province, 550025, China.
  • Niu S; The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, Guizhou Province, 550025, China. niusuzhen@163.com.
  • Deng X; School of Architecture, Guizhou university, Guiyang, Guizhou Province, 550025, China.
  • Bai D; College of Tea Science, Guizhou University, Guiyang, Guizhou Province, 550025, China.
  • Chen Z; lnstitute of Tea, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province, 550006, China. zwchentea@163.com.
  • Deng X; College of Tea Science, Guizhou University, Guiyang, Guizhou Province, 550025, China.
  • Huang D; College of Tea Science, Guizhou University, Guiyang, Guizhou Province, 550025, China.
BMC Plant Biol ; 24(1): 79, 2024 Jan 30.
Article en En | MEDLINE | ID: mdl-38287242
ABSTRACT

BACKGROUND:

Guizhou Plateau, as one of the original centers of tea plant, has a profound multi-ethnic cultural heritage and abundant tea germplasm resources. However, the impact of indigenous community factors on the genetic diversity, population structure and geographical distribution of tea plant is still unclear.

RESULTS:

Using the genotyping-by-sequencing (GBS) approach, we collected 415 tea plant accessions from the study sites, estimated genetic diversity, developed a core collection, and conducted a genome-wide association study (GWAS) based on 99,363 high-quality single-nucleotide polymorphisms (SNPs). A total of 415 tea accessions were clustered into six populations (GP01, GP02, GP03, GP04, GP05 and GP06), and the results showed that GP04 and GP05 had the highest and lowest genetic diversity (Pi = 0.214 and Pi = 0.145, respectively). Moreover, 136 tea accessions (33%) were selected to construct the core set that can represent the genetic diversity of the whole collection. By analyzing seven significant SNP markers associated with the traits such as the germination period of one bud and two leaves (OTL) and the germination period of one bud and three leaves (OtL), four candidate genes possibly related to OTL and OtL were identified.

CONCLUSIONS:

This study revealed the impact of indigenous communities on the population structure of 415 tea accessions, indicating the importance of cultural practices for protection and utilization of tea plant genetic resources. Four potential candidate genes associated with the OTL and OtL of tea plant were also identified, which will facilitate genetic research, germplasm conservation, and breeding.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / Estudio de Asociación del Genoma Completo Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: BMC Plant Biol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Variación Genética / Estudio de Asociación del Genoma Completo Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: BMC Plant Biol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido