Hagenblad Jenny, Morales Jacob
IFM Biology, Linköping University, SE-581 83 Linköping, Sweden.
Department of Historical Sciences, University of Las Palmas de Gran Canaria, Pérez del Toro 1, 35003 Las Palmas de Gran Canaria, Spain.
Afr Archaeol Rev. 2020;37(4):579-595. doi: 10.1007/s10437-020-09415-5. Epub 2020 Oct 2.
The Canary Islands are an archipelago that lies about 100 km west of North Africa. Barley () has been continuously cultivated since the colonization of the islands. To investigate the agricultural history of the islands, the DNA from multiple individuals of six extant landraces of barley was sequenced, and the resulting data were analyzed with ABC modeling. Estimates of separation times of barley populations on the different islands and the mainland were congruent with archaeological dating of the earliest settlements on the islands. The results of the genetic analyses were consistent with the continuous cultivation of barley on Lanzarote island since it was first colonized, but suggested cultivation was carried out at a smaller scale than on Gran Canaria and Tenerife. Contrary to archaeological evidence and early written historical sources, the genetic analyses suggest that barley was cultivated on a larger scale on Tenerife than on Gran Canaria. The genetic analysis of contemporary barley added support to the dating of the colonization of the islands and pointed to the need for more archaeological data concerning barley cultivation on Tenerife.
加那利群岛是位于北非以西约100公里处的一个群岛。自该群岛被殖民以来，大麦就一直在持续种植。为了探究该群岛的农业历史，对六个现存大麦地方品种的多个个体的DNA进行了测序，并使用近似贝叶斯计算（ABC）模型对所得数据进行了分析。不同岛屿和大陆上大麦种群的分离时间估计与该群岛最早定居点的考古年代测定结果一致。遗传分析结果表明，自兰萨罗特岛首次被殖民以来，大麦一直在该岛持续种植，但种植规模小于大加那利岛和特内里费岛。与考古证据和早期书面历史资料相反，遗传分析表明，特内里费岛的大麦种植规模比特内里费岛更大。对当代大麦的遗传分析为该群岛殖民化的年代测定提供了支持，并指出需要更多关于特内里费岛大麦种植的考古数据。
