RPB2 gene reveals a phylodemographic signal in wild and domesticated grapevine (Vitis vinifera)

摘要: Polymorphism at the single copy RPB2 locus was investigated to define relationship between wild and domesticated grapevines. Two different forms still coexist in Eurasia, cultivated (Vitis vinifera L. ssp. vinifera) sylvestris (Gmelin) Hegi), referred as separate subspecies. Using observed number of mutations locus, well archaeological data, an approximate age domestication, we have estimated a high nucleotide substitution rate (4.25 × 10−7) group. Moreover, dynamics population size gene were using Bayesian coalescent inference. The skyline plot offered interesting information on past for both groups. signal exponential growth grapevine accessions can be viewed consequence human breeding activity during domestication species. However, recent drastic decline has been Mediterranean lineages. This event mirrors demographic grape, probably explained by anthropogenic pressure its natural habitats introduction pathogens from North America centuries.