Fecha/hora: 31/05/2024 21:41:35

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 22/11/2016
Fecha de la última actualización: | 09/10/2019
Autoria: | GAIERO, P.; VAN DE BELT, J.; VILARO, F.; SCHRANZ, M. E.; SPERANZA, P.; DE JONG, H.
Afiliación: | PAOLA GAIERO, Universidad de la República (UdelaR)/ Facultad de Agronomía; JOSÉ VAN DE BELT, Universidad de Wageningen (WU); FRANCISCO LUIS VILARO PAREJA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; M. ERIC SCHRANZ, Universidad de Wageningen (WU); PABLO SPERANZA, Universidad de la República (UdelaR)/ Facultad de Agronomía; HANS DE JONG, Universidad de Wageningen (WU).
Título: | Collinearity between potato (Solanum tuberosum L.) and wild relatives assessed by comparative cytogenetic mapping.
Año de publicación: | 2016
Fuente/Imprenta: | Genome, 2016, online 14 November 2016, 10.1139/gen-2016-0150
DOI: | 10.1139/gen-2016-0150
Idioma: | Inglés
Notas: | Received July 25, 2016. // Published on the web 14 November 2016.

Contenido:

ABSTRACT

A major bottleneck to Introgressive hybridization is the lack of genome collinearity between the donor (alien) genome and the recipient crop genome. Structural differences between the homeologs may create unbalanced segregation of chromosomes or cause linkage drag. To assess large-scale collinearity between potato and two of its wild relatives (Solanum commersonii and S. chacoense), we used BAC-FISH mapping of sequences with known positions on the RH potato map. BAC probes could successfully be hybridized to the S. commersonii and S. chachoense pachytene chromosomes, confirming their correspondence with linkage groups in RH potato. Our study shows that the order of BAC signals is conserved. Distances between BAC signals were quantified and compared; some differences found suggest either small-scale rearrangements or reduction/amplification of repeats. We conclude that S. commersonii and S. chacoense are collinear with cultivated S. tuberosum on the whole chromosome scale, making these amenable species for efficient introgressive hybridization breeding.

Palabras-Clave: | INTROGRESSIVE HYBRIDISATION; MACROSYNTENY; MULTICOLOUR BAC-FISH; POTATO; SOLANUM CHACOENSE.
Thesagro: | PAPA; SOLANUM COMMERSONII.
Categoría del tema: | --
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (101238-1) - PXI - AP - DD - PP/GENOME/2016 -  -  - DIS