Chromosome-level genome assembly of Zizania latifolia provides insights into its seed shattering and phytocassane biosynthesis.
Commun Biol
; 5(1): 36, 2022 01 11.
Article
em En
| MEDLINE
| ID: mdl-35017643
ABSTRACT
Chinese wild rice (Zizania latifolia; family Gramineae) is a valuable medicinal homologous grain in East and Southeast Asia. Here, using Nanopore sequencing and Hi-C scaffolding, we generated a 547.38 Mb chromosome-level genome assembly comprising 332 contigs and 164 scaffolds (contig N50 = 4.48 Mb; scaffold N50 = 32.79 Mb). The genome harbors 38,852 genes, with 52.89% of the genome comprising repetitive sequences. Phylogenetic analyses revealed close relation of Z. latifolia to Leersia perrieri and Oryza species, with a divergence time of 19.7-31.0 million years. Collinearity and transcriptome analyses revealed candidate genes related to seed shattering, providing basic information on abscission layer formation and degradation in Z. latifolia. Moreover, two genomic blocks in the Z. latifolia genome showed good synteny with the rice phytocassane biosynthetic gene cluster. The updated genome will support future studies on the genetic improvement of Chinese wild rice and comparative analyses between Z. latifolia and other plants.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sementes
/
Genoma de Planta
/
Cromossomos de Plantas
/
Poaceae
País/Região como assunto:
Asia
Idioma:
En
Revista:
Commun Biol
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China