Armenia: historical origin of domesticated grapevine

Abstract

The Armenian Highlands are located on the northern border of Western Asia and stretch up to the Caucasus from the north. Throughout human history, the country has played an important role in connecting the civilizations of Europe and the Near East. A recent large-scale study about the dual domestication origin and evolution of grapes approved that in the Armenian Highlands human and grapevine stories are interlaced through centuries and roots of grapevine domestication are found deep in the Pleistocene, ending 11.5 thousand years ago. Until recently very little was known about the real magnitude of grape germplasm in Armenia. To address the gap in 2017, a nationwide program was launched to collect, conserve, and thoroughly characterize Armenian grapevine germplasm. Obtained results indicated that high genetic and morphological diversity as a source of novel alleles and genotypes is still safeguard in Armenia. A combination of genomic data, nuclear microsatellite markers and ampelography proved useful to determine the identity of collected samples recovered from old vineyards and home gardens, to analyze genetic relationships among two subspecies of Vitis vinifera, to demonstrated existence of gene flow between the wild and cultivated grapevines through overlaps and presence of admixed ancestry values.