Your browser doesn't support javascript.
loading
Draft genome of the living fossil Ginkgo biloba.
Guan, Rui; Zhao, Yunpeng; Zhang, He; Fan, Guangyi; Liu, Xin; Zhou, Wenbin; Shi, Chengcheng; Wang, Jiahao; Liu, Weiqing; Liang, Xinming; Fu, Yuanyuan; Ma, Kailong; Zhao, Lijun; Zhang, Fumin; Lu, Zuhong; Lee, Simon Ming-Yuen; Xu, Xun; Wang, Jian; Yang, Huanming; Fu, Chengxin; Ge, Song; Chen, Wenbin.
Afiliación
  • Guan R; BGI-Shenzhen, Shenzhen, 518083, China.
  • Zhao Y; BGI-Qingdao, Qingdao, 266555, China.
  • Zhang H; State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
  • Fan G; The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Liu X; Laboratory of Systematic & Evolutionary Botany and Biodiversity, Institute of Ecology and Conservation Center for Gene Resources of Endangered Wildlife, Zhejiang University, Hangzhou, 310058, China.
  • Zhou W; BGI-Shenzhen, Shenzhen, 518083, China.
  • Shi C; BGI-Qingdao, Qingdao, 266555, China.
  • Wang J; Stanley Ho Centre for Emerging Infectious Diseases, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
  • Liu W; BGI-Shenzhen, Shenzhen, 518083, China.
  • Liang X; BGI-Qingdao, Qingdao, 266555, China.
  • Fu Y; State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, Macao, China.
  • Ma K; BGI-Shenzhen, Shenzhen, 518083, China.
  • Zhao L; The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
  • Zhang F; Laboratory of Systematic & Evolutionary Botany and Biodiversity, Institute of Ecology and Conservation Center for Gene Resources of Endangered Wildlife, Zhejiang University, Hangzhou, 310058, China.
  • Lu Z; BGI-Shenzhen, Shenzhen, 518083, China.
  • Lee SM; BGI-Shenzhen, Shenzhen, 518083, China.
  • Xu X; BGI-Wuhan, BGI-Shenzhen, Wuhan, 430074, China.
  • Wang J; BGI-Shenzhen, Shenzhen, 518083, China.
  • Yang H; BGI-Shenzhen, Shenzhen, 518083, China.
  • Fu C; State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
  • Ge S; BGI-Shenzhen, Shenzhen, 518083, China.
  • Chen W; The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
Gigascience ; 5(1): 49, 2016 11 21.
Article en En | MEDLINE | ID: mdl-27871309
BACKGROUND: Ginkgo biloba L. (Ginkgoaceae) is one of the most distinctive plants. It possesses a suite of fascinating characteristics including a large genome, outstanding resistance/tolerance to abiotic and biotic stresses, and dioecious reproduction, making it an ideal model species for biological studies. However, the lack of a high-quality genome sequence has been an impediment to our understanding of its biology and evolution. FINDINGS: The 10.61 Gb genome sequence containing 41,840 annotated genes was assembled in the present study. Repetitive sequences account for 76.58% of the assembled sequence, and long terminal repeat retrotransposons (LTR-RTs) are particularly prevalent. The diversity and abundance of LTR-RTs is due to their gradual accumulation and a remarkable amplification between 16 and 24 million years ago, and they contribute to the long introns and large genome. Whole genome duplication (WGD) may have occurred twice, with an ancient WGD consistent with that shown to occur in other seed plants, and a more recent event specific to ginkgo. Abundant gene clusters from tandem duplication were also evident, and enrichment of expanded gene families indicates a remarkable array of chemical and antibacterial defense pathways. CONCLUSIONS: The ginkgo genome consists mainly of LTR-RTs resulting from ancient gradual accumulation and two WGD events. The multiple defense mechanisms underlying the characteristic resilience of ginkgo are fostered by a remarkable enrichment in ancient duplicated and ginkgo-specific gene clusters. The present study sheds light on sequencing large genomes, and opens an avenue for further genetic and evolutionary research.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Análisis de Secuencia de ADN / Ginkgo biloba / Mapeo Contig Tipo de estudio: Prognostic_studies Idioma: En Revista: Gigascience Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Análisis de Secuencia de ADN / Ginkgo biloba / Mapeo Contig Tipo de estudio: Prognostic_studies Idioma: En Revista: Gigascience Año: 2016 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos