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on. Plea▓se scan the QR Code to follow us on InstagramPlease scan the QR Code to follow us on WechatS▓weet potatoes may originate in Asia, not in the Americ▓asSweet potatoes may originate in Asia, not in the AmericasS▓weet potatoes may originate in Asia, not ▓in the Americas05-23-2018 09:45 BJTNew research published in the Proceedings of the National Academies of Science on Monday suggests that sweet potatoes may have originated in Asia instead of the Americas, and much earlier than previously known.Paleobotanists in Indiana University led by David Dilcher identified 57-milion-year-old leaf fossils from eastern India ▓as being from the morning glory family, which inclu

hile realizing its own d


ndwana land mass that became part of Asia."I think this will change people's ideas," Dilcher said. "It

will be ▓a data point that is picked up and used in other work where researchers are trying to find the time of the evolution of major groups of fl▓owering plants."Previous fossil evidence had ▓suggested the morning glory family may ha▓ve originated in North America about 35 million years ago, but molecular analyses▓ supported the idea that it originated earlier and in the Old World. The new research provides evidence for th▓at conclusion.The discovery also suggested▓ the morning glory family and the nigh

d the Be▓ lt and Road with high-quality. China and France should shoulder the r esponsibility to addre ss the globa l governanc▓e deficit, safe guard multilateralism, jointly tackl e global challenges an d build a comm▓unity of a sha red futu re for humanity, Xi said.Macro n called on France and Europe to o pen their ma 柳河县wap 沿河土家族自治县5G 周宁县wap 西藏5G 满洲里市wap 保山市wap 来宾市5G 从化市5G 廉江市5G 临汾市5G 新昌县wap 西藏自治区5G 嘉祥县5G 垦利县wap 贵港市wap 繁昌县5G 闽侯县5G 临猗县5G 常德市5G 湘潭县wap 新开复古传奇私服发布网 传奇私服发布网站最新 传奇私服用什么客户端 网通新开传奇私服网站 新开传奇私服发不网 多职业传奇私服贴吧 梦想迷失传奇私服网站 手机单职业传奇私服 热血传奇私服1.76金币 网通传奇私服3000k