2025年5月27日火曜日

染色体レベルのゲノム再配列による雑種形成起源の手がかり

Chromosome-level genome assembly for clubrush (Scirpus × mariqueter) endemic to China

https://doi.org/10.1038/s41597-025-05204-4

Yu Ning, Yang Li, Chun Yi Li, Jin Zhi Wang, Tian Shi Wang, Yan Chao Zheng, Yang Ying Zhan, Shen Jian Xu, Shu Bin Dong & Yi Fei Wang

Sci Data 12: 839 (2025).

genome assembly:
227.75Mb (contig N50: 3.89Mb)
 NCBI (no. GCA_037678475.1)
 Annotation file (https://doi.org/10.6084/m9.figshare.25479922.v1)
 Bioproject ID (PRJNA1079027)
 Biosample ID (SAMN40029249)
 Sequence Read Archive (SRP491792)

haploid karyotype comprising:
54 pseudochromosomes (ave. 4.05Mb)

telomere to telomere level:
32 pseudochromosomes (54.12%)

predicted and annotated: 
25,239 protein-coding genes

BUSCO score:
95.10%

duplicated genes:
1.70%

the origin of S. mariqueter:
need to more study for hybrid speciation 

ゲノムアセンブリの手法(OIST)
https://www.oist.jp/ja/image/representation-genome-assembly-method

新規ゲノムアセンブリとアノテーション(日本生物工学学会)
https://www.sbj.or.jp/wp-content/uploads/file/sbj/9509/9509_bioinformatics.pdf