De novo assembly of the cattle reference genome with single-molecule sequencing.
Gigascience
; 9(3)2020 03 01.
Article
en En
| MEDLINE
| ID: mdl-32191811
ABSTRACT
BACKGROUND:
Major advances in selection progress for cattle have been made following the introduction of genomic tools over the past 10-12 years. These tools depend upon the Bos taurus reference genome (UMD3.1.1), which was created using now-outdated technologies and is hindered by a variety of deficiencies and inaccuracies.RESULTS:
We present the new reference genome for cattle, ARS-UCD1.2, based on the same animal as the original to facilitate transfer and interpretation of results obtained from the earlier version, but applying a combination of modern technologies in a de novo assembly to increase continuity, accuracy, and completeness. The assembly includes 2.7 Gb and is >250× more continuous than the original assembly, with contig N50 >25 Mb and L50 of 32. We also greatly expanded supporting RNA-based data for annotation that identifies 30,396 total genes (21,039 protein coding). The new reference assembly is accessible in annotated form for public use.CONCLUSIONS:
We demonstrate that improved continuity of assembled sequence warrants the adoption of ARS-UCD1.2 as the new cattle reference genome and that increased assembly accuracy will benefit future research on this species.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Polimorfismo Genético
/
Cruzamiento
/
Bovinos
/
Genoma
/
Genómica
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Gigascience
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos