A chromosome-level genome assembly for Dracaena cochinchinensis reveals the molecular basis of its longevity and formation of dragon’s blood

查看全文 作　　者：Yanhong [1]Xu;Kaijian [4]Zhang;Zhonglian [3]Zhang;Yang [1]Liu;Feifei [2]Lv;Peiwen [1]Sun;Shixi [1]Gao;Qiuling [1]Wang;Cuicui [1]Yu;Jiemei [1]Jiang;Chuangjun [5]Li;Meifang [3]Song;Zhihui [1]Gao;Chun [1]Sui;Haitao [3]Li;Yue [1]Jin;Xinwei [1]Guo;Jianhe [1,2]Wei

机构地区：[1]Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine,Ministry of Education&National Engineering Laboratory for Breeding of Endangered Medicinal Materials,Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100193,China;[2]Hainan Branch of the Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College,Haikou 570311,China;[3]Yunnan Key Laboratory of Southern Medicine Utilization,Yunnan Branch of the Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College,Jinghong 666100,China;[4]Novogene Bioinformatics Institute,Beijing 100083,China;[5]Institute of Materia Medica,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100050,China

出　　处：《Plant Communications》索引2022年第3卷第6期,共15页

基　　金：supported by the program of the CAMS Initiative for Innovative Medicine(2021-1-I2M-032);the National Natural Science Foundation of China(82173925 and 81573525);the National Key Research and Development Program of China(2018YFC1706401). 摘　　要：Dracaena,a remarkably long-lived and slowly maturing species of plant,is world famous for its ability to produce dragon’s blood,a precious traditional medicine used by different cultures since ancient times.However,there is no detailed and high-quality genome available for this species at present;thus,the molecular mechanisms that underlie its important traits are largely unknown.These factors seriously limit the protection and regeneration of this rare and endangered plant resource.Here,we sequenced and assembled the genome of Dracaena cochinchinensis at the chromosome level.The D.cochinchinensis genome covers 1.21 Gb with a scaffold N50 of 50.06 Mb and encodes 31619 predicted protein-coding genes.Analysis showed that D.cochinchinensis has undergone two whole-genome duplications and two bursts of long terminal repeat insertions.The expansion of two gene classes,cis-zeatin O-glucosyltransferase and small auxin upregulated RNA,were found to account for its longevity and slow growth.Two transcription factors(bHLH and MYB)were found to be core regulators of the flavonoid biosynthesis pathway,and reactive oxygen species were identified as the specific signaling molecules responsible for the injuryinduced formation of dragon’s blood.Our study provides high-quality genomic information relating to D.cochinchinensis and significant insight into the molecular mechanisms responsible for its longevity and formation of dragon’s blood.These findings will facilitate resource protection and sustainable utilization of Dracaena. 关键词：GENOME Dracaena cochinchinensis dragon’s blood LONGEVITY flavonoid biosynthesis ROS

相关文献

参考文献（98）
引证文献（1）
耦合文献（293）

参考文献(98)

引证文献(1)

耦合文献(293)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

A chromosome-level genome assembly for Dracaena cochinchinensis reveals the molecular basis of its longevity and formation of dragon’s blood

参考文献(98)

引证文献(1)

耦合文献(293)

用户提示