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The draft genome assembly of the critically endangered Nyssa yunnanensis, a plant species with extremely small populations endemic to Yunnan Province, China

Authors :
Weixue Mu
Jinpu Wei
Ting Yang
Yannan Fan
Le Cheng
Jinlong Yang
Ranchang Mu
Jie Liu
Jianming Zhao
Weibang Sun
Xun Xu
Xin Liu
Radoje Drmanac
Huan Liu
Source :
GigaByte (2020)
Publication Year :
2020
Publisher :
GigaScience Press, 2020.

Abstract

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.

Details

Language :
English
ISSN :
27094715
Database :
Directory of Open Access Journals
Journal :
GigaByte
Publication Type :
Academic Journal
Accession number :
edsdoj.9d5da7c7053142b7b2c1705d1d60820e
Document Type :
article
Full Text :
https://doi.org/10.46471/gigabyte.4