Genetic diversity and evolutionary patterns of Taraxacum kok‐saghyz Rodin
| Autor: | Li Wang, Qiang Gao, Nie Qiuhai, Wang Yonggang, Xu Lin, Yan Zhang, Zifeng Lu, Zhibin Zhang, Qingqing Yan, Hai-Long Ren, Abudukeyoumu Abudurezike, Zhang Xuechao |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Population SNP adaptation Biology 010603 evolutionary biology 01 natural sciences Gene flow 03 medical and health sciences Taraxacum kok-saghyz rubber dandelion education Ecology Evolution Behavior and Systematics QH540-549.5 030304 developmental biology Nature and Landscape Conservation 0303 health sciences Genetic diversity education.field_of_study Natural selection population genetic diversity Ecology population structure biology.organism_classification Evolutionary biology Selective sweep Biological regulation Molecular function regulator |
| Zdroj: | Ecology and Evolution, Vol 11, Iss 12, Pp 7917-7926 (2021) |
| ISSN: | 2045-7758 |
| Popis: | Taraxacum kok‐saghyz Rodin (TKS) is an important potential alternative source of natural inulin and rubber production, which has great significance for the production of industrial products. In this study, we sequenced 58 wild TKS individuals collected from four different geography regions worldwide to elucidate the population structure, genetic diversity, and the patterns of evolution. Also, the first flowering time, crown diameter, morphological characteristics of leaf, and scape of all TKS individuals were measured and evaluated statistically. Phylogenetic analysis based on SNPs and cluster analysis based on agronomic traits showed that all 58 TKS individuals could be roughly divided into three distinct groups: (a) Zhaosu County in Xinjiang (population AB, including a few individuals from population C and D); (b) Tekes County in Xinjiang (population C); and (c) Tuzkol lake in Kazakhstan (population D). Population D exhibited a closer genetic relationship with population C compared with population AB. Genetic diversity analysis further revealed that population expansion from C and D to AB occurred, as well as gene flow between them. Additionally, some natural selection regions were identified in AB population. Function annotation of candidate genes identified in these regions revealed that they mainly participated in biological regulation processes, such as transporter activity, structural molecule activity, and molecular function regulator. We speculated that the genes identified in selective sweep regions may contribute to TKS adaptation to the Yili River Valley of Xinjiang. In general, this study provides new insights in clarifying population structure and genetic diversity analysis of TKS using SNP molecular markers and agronomic traits. |
| Databáze: | OpenAIRE |
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