Nuclear and mitochondrial DNA polymorphisms suggest introgression contributed to garden beet (Beta vulgaris L.) domestication
| Autor: | Kazuyoshi Kitazaki, Kosuke Satoh, Tomohiko Kubo, Ryo Hayakawa, Yosuke Kuroda, Jun Kashikura, Yohei Kanomata, Hiroaki Matsuhira |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Mitochondrial DNA Introgression Plant Science Biology Population structure 01 natural sciences Domestication 03 medical and health sciences Botany Garden beet Genetics Ecology Evolution Behavior and Systematics Genetic diversity fungi technology industry and agriculture food and beverages Plant physiology 030104 developmental biology Minisatellite Genetic marker Gene pool Mitoype Agronomy and Crop Science geographic locations 010606 plant biology & botany |
| Zdroj: | Genetic Resources and Crop Evolution. 69:271-283 |
| ISSN: | 0925-9864 |
| Popis: | Garden beet is the ancestor of fodder beets and sugar beets, but the origin of garden beet’s genetic potential to evolve novel beet types is debatable. In this study, we analyzed nuclear and mitochondrial DNAs in 47 garden beet accessions using DNA markers. Multiple analytical methods revealed a unified population structure with subpopulations evi- dent in the European and Caucasian accessions. We diagnosed mitochondrial genome types (mitotypes) based on mitochondrial minisatellite loci in 541 plants from the 47 accessions, revealing a major mitotype and 11 minor mitotypes in garden beets from Europe and the Caucasus region that were also present in endemic leaf beets and wild beets. Our data indicate that European and Caucasian garden beets include genetically differentiated subpopulations. Provided that the occurrence of minor mitotypes is a vestige from crosses with leaf beets and wild beets, the notion that introgression contributed to increasing the genet ic diversity in the garden beet gene pool is substantiated at the molecular level. |
| Databáze: | OpenAIRE |
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