Reference genomes of channel catfish and blue catfish reveal multiple pericentric chromosome inversions.
Aquaculture
Blue catfish
Channel catfish
Chromosome inversion
Fish
Genome
Reference genome
Sequence assembly
Speciation
Teleost
Journal
BMC biology
ISSN: 1741-7007
Titre abrégé: BMC Biol
Pays: England
ID NLM: 101190720
Informations de publication
Date de publication:
03 04 2023
03 04 2023
Historique:
received:
04
11
2022
accepted:
08
03
2023
medline:
5
4
2023
entrez:
4
4
2023
pubmed:
5
4
2023
Statut:
epublish
Résumé
Channel catfish and blue catfish are the most important aquacultured species in the USA. The species do not readily intermate naturally but F We present high-quality reference genome sequences for both channel catfish and blue catfish, containing only 67 and 139 total gaps, respectively. We also report three pericentric chromosome inversions between the two genomes, as evidenced by long reads across the inversion junctions from distinct individuals, genetic linkage mapping, and PCR amplicons across the inversion junctions. Recombination rates within the inversional segments, detected as double crossovers, are extremely low among backcross progenies (progenies of channel catfish female × F We generated high-quality reference genome sequences for both blue catfish and channel catfish and identified major chromosomal inversions on chromosomes 6, 11, and 24. These perimetric inversions were validated by additional sequencing analysis, genetic linkage mapping, and PCR analysis across the inversion junctions. The reference genome sequences, as well as the contrasted chromosomal architecture should provide guidance for the interspecific breeding programs.
Sections du résumé
BACKGROUND
Channel catfish and blue catfish are the most important aquacultured species in the USA. The species do not readily intermate naturally but F
RESULTS
We present high-quality reference genome sequences for both channel catfish and blue catfish, containing only 67 and 139 total gaps, respectively. We also report three pericentric chromosome inversions between the two genomes, as evidenced by long reads across the inversion junctions from distinct individuals, genetic linkage mapping, and PCR amplicons across the inversion junctions. Recombination rates within the inversional segments, detected as double crossovers, are extremely low among backcross progenies (progenies of channel catfish female × F
CONCLUSIONS
We generated high-quality reference genome sequences for both blue catfish and channel catfish and identified major chromosomal inversions on chromosomes 6, 11, and 24. These perimetric inversions were validated by additional sequencing analysis, genetic linkage mapping, and PCR analysis across the inversion junctions. The reference genome sequences, as well as the contrasted chromosomal architecture should provide guidance for the interspecific breeding programs.
Identifiants
pubmed: 37013528
doi: 10.1186/s12915-023-01556-8
pii: 10.1186/s12915-023-01556-8
pmc: PMC10071708
doi:
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
67Informations de copyright
© 2023. The Author(s).
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