The draft genome assembly of the critically endangered Nyssa yunnanensis, a plant species with extremely small populations endemic to Yunnan Province, China
Forestry Bureau of Ruili, Yunnan Dehong, Ruili 678600, China
Jie Liu
Forestry Bureau of Ruili, Yunnan Dehong, Ruili 678600, China
Jianming Zhao
Forestry Bureau of Ruili, Yunnan Dehong, Ruili 678600, China
Weibang Sun
Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, China
State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China, Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen 518083, China
State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China
Radoje Drmanac
State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China, Complete Genomics Inc., 2904 Orchard Pkwy, San Jose, CA 95134, USA
State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China, Department of Biology, University of Copenhagen, DK-2100 Copenhagen, Denmark
Nyssa yunnanensis is a deciduous tree species in the family Nyssaceae within the order Cornales. As only eight individual trees and two populations have been recorded in China’s Yunnan province, this species has been listed among China’s national Class I protection species since 1999 and also among 120 PSESP (Plant Species with Extremely Small Populations) in the Implementation Plan of Rescuing and Conserving China’s Plant Species with Extremely Small Populations (PSESP) (2011-2-15). Here, we present the draft genome assembly of N. yunnanensis. Using 10X Genomics linked-reads sequencing data, we carried out the de novo assembly and annotation analysis. The N. yunnanensis genome assembly is 1475 Mb in length, containing 288,519 scaffolds with a scaffold N50 length of 985.59 kb. Within the assembled genome, 799.51 Mb was identified as repetitive elements, accounting for 54.24% of the sequenced genome, and a total of 39,803 protein-coding genes were predicted. With the genomic characteristics of N. yunnanensis available, our study might facilitate future conservation biology studies to help protect this extremely threatened tree species.
