亚洲аv天堂无码,久久aⅴ无码一区二区三区,96免费精品视频在线观看,国产2021精品视频免费播放,国产喷水在线观看,奇米影视久久777中文字幕 ,日韩在线免费,91spa国产无码

      Researchers uncover DNA details about ancient trees in Beijing-Tianjin-Hebei region

      Source: Xinhua| 2019-09-04 12:57:00|Editor: mingmei
      Video PlayerClose

      BEIJING, Sept. 4 (Xinhua) -- Chinese researchers are collecting DNA details about ancient trees in the Beijing-Tianjin-Hebei region to unveil their mysteries and facilitate protection, according to Beijing Daily Wednesday.

      The research is conducted by the Beijing Institute of Landscape Architecture and involves 25 ancient ginkgoes, including 18 ginkgoes located in Beijing, five in Tianjin and two in Hebei Province. Some well-known ancient trees such as the Emperor Tree in Tanzhe Temple and Ginkgo King in Dajue Temple are included.

      Trees have their own DNA just like humans and molecular analysis will help reveal mysteries related to the longevity traits of ancient trees, according to the report.

      Researchers collect DNA details of ancient trees by selecting three new sprouted leaves from the trees. They will also use an ordinary ginkgo for comparison study.

      The genetic sequencing of these ancient trees has been completed and a large amount of data is being analyzed, the report cited Wang Yongge, a senior engineer from Beijing Institute of Landscape Architecture as saying.

      The research can be applied to the field of molecular breeding and help cultivate tree species with strong resistance and long life.

      Beijing has implemented a series of measures to strengthen the protection and management of over 40,000 ancient trees scattered in the city, including carrying out investigations, registration, classifications and filing, and increasing patrols of the city's trees, according to Beijing's greening authorities.

      TOP STORIES
      EDITOR’S CHOICE
      MOST VIEWED
      EXPLORE XINHUANET
      010020070750000000000000011100001383641911
      主站蜘蛛池模板: 国产丝袜啪啪| 国产日产久久福利精品一区| 亚洲色成人WWW永久在线观看| 亚洲AV无码专区在线电影天堂| 日韩丝袜欧美人妻制服| 色综合伊人天天综合网中文| 亚洲经典一区二区三区四区| 五月婷婷激情六月开心| 无码无遮挡又大又爽又黄的视频| 久久综合av免费观看| 国产亚洲精品自在久久蜜tv| 国产一区二区在线观看我不卡| 国产免费av片在线观看播放| 91成人啪国产啪永久地址| 国产精品网红尤物福利在线观看| 欧美精品一本久久男人的天堂| 超清中文乱码字幕在线| 人妻少妇精品无码系列| 老司机午夜精品视频无码| 看全色黄大色大片免看的| 亚洲美女性生活一级片| 国产成人精品午夜福利免费APP| 久久精品99av高久久精品 | 野花免费视频完整版在线播放| 国产精品久久成人午夜一区二区 | 亚洲国产精品一区二区第一| 亚洲乱码日产精品bd在线| 亚洲最大综合久久网成人| 自慰高潮网站在线观看| 亚洲一区二区三区在线中文| 精品国产污污免费网站| 国产资源精品中文字幕| 亲少妇摸少妇和少妇啪啪| 亚洲精品一品二品av| 国产精品成人免费视频网站京东| 乱系列中文字幕在线视频| 日韩人妻高清福利视频| 青青草国内视频在线观看| 国产裸体美女视频全黄| 91熟女乱色一区二区三区| 中文字幕久久精品波多野结百度 |