Whole genome sequencing of Crassostrea ariakensis (Mollusca: Ostreidae) and C. hongkongensis expands understandings of stress resistance in sessile oysters.
Genomics
; 116(1): 110757, 2024 Jan.
Article
en En
| MEDLINE
| ID: mdl-38061482
ABSTRACT
To understand the environmental adaptations among sessile bivalves lacking adaptive immunity, a series of analyses were conducted, with special emphasis on the widely distributed C. ariakensis. Employing Pacbio sequencing and Hi-C technologies, whole genome for each of a C. ariakensis (southern China) and C. hongkongensis individual was generated, with the contig N50 reaching 6.2 and 13.0 Mb, respectively. Each genome harbored over 30,000 protein-coding genes, with approximately half of each genome consisting of repeats. Genome alignment suggested possible introgression between C. gigas and C. ariakensis (northern China), and re-sequencing data corroborated this result and indicated significant gene flow between C. gigas and C. ariakensis. These introgressed candidates, well-represented by genes related to immunity and osmotic pressure, may be associated with environmental stresses. Gene family dynamics modeling suggested immune-related genes were well represented among the expanded genes in C. ariakensis. These outcomes could be attributed to the spread of C. ariakensis.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Crassostrea
Límite:
Animals
País/Región como asunto:
Asia
Idioma:
En
Revista:
Genomics
Asunto de la revista:
GENETICA
Año:
2024
Tipo del documento:
Article