GENOMIC CHARACTERISTICS OF CRITICALLY ENDANGERED CHIMONOBAMBUSA HIRTINODA CS CHAO & KM LAN

被引:0
|
作者
Shen, Tengfei [1 ,2 ]
Zheng, Youmiao [1 ,3 ]
Sun, Zimou [1 ,2 ]
Xu, Meng [1 ,2 ]
机构
[1] Nanjing Forestry Univ, Co Innovat Ctr Sustainable Forestry Southern Chin, Nanjing 210037, Peoples R China
[2] Nanjing Forestry Univ, Coll Forestry, Nanjing 210037, Peoples R China
[3] China Natl Bamboo Res Ctr, Hangzhou 310012, Peoples R China
来源
BANGLADESH JOURNAL OF BOTANY | 2021年 / 50卷 / 01期
关键词
K-mer; Genome size; Heterozygous; Square bamboo; GENETIC DIVERSITY; BAMBOO; IDENTIFICATION;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
With its unique square-shaped culm, Chimonobambusa hirtinoda C. S. Chao & K.M. Lan is a critically endangered species, and its natural habitat is solely restricted to Doupeng Mountain in Guizhou, China. Two small-insert libraries from C. hirtinoda were constructed and sequenced. Approximately 127.83 Gb of high-quality reads were generated and assembled into 9,320,997 contigs with a N50 length of 213bp, thereby producing 8,867,344 scaffolds with total length of 2.01 Gb. An estimated genome size of C. hirtinode was 2.86 Gb on the basis of k-mer frequency analysis, with the GC content of 45.40%. The repeat rate and heterozygous ratio were 74.11 and 1.48% in C. hirtinoda genome, respectively. Finally, 65,398 SSR loci were identified in the assembled contigs, including 58.66% tri-nucleotide, 27.42% di-nucleotide, 7.94% tetra-nucleotide, 3.67% penta-nucleotide, and 2.31% hexa-nucleotide. Results of this study are useful not only for ecological conservation of C. hirtinoda, but also for phylogenetic studies.
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页码:69 / 77
页数:9
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