The genome sequences of Arachis duranensis and Arachis ipaensis, the diploid ancestors of cultivated peanut.
Nat Genet
; 48(4): 438-46, 2016 Apr.
Article
en En
| MEDLINE
| ID: mdl-26901068
Cultivated peanut (Arachis hypogaea) is an allotetraploid with closely related subgenomes of a total size of â¼2.7 Gb. This makes the assembly of chromosomal pseudomolecules very challenging. As a foundation to understanding the genome of cultivated peanut, we report the genome sequences of its diploid ancestors (Arachis duranensis and Arachis ipaensis). We show that these genomes are similar to cultivated peanut's A and B subgenomes and use them to identify candidate disease resistance genes, to guide tetraploid transcript assemblies and to detect genetic exchange between cultivated peanut's subgenomes. On the basis of remarkably high DNA identity of the A. ipaensis genome and the B subgenome of cultivated peanut and biogeographic evidence, we conclude that A. ipaensis may be a direct descendant of the same population that contributed the B subgenome to cultivated peanut.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arachis
/
Genoma de Planta
Idioma:
En
Revista:
Nat Genet
Asunto de la revista:
GENETICA MEDICA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Estados Unidos