Comparative analysis of rosaceous genomes and the reconstruction of a putative ancestral genome for the family
Illa, Eudald (Centre de Recerca en Agrigenòmica)
Sargent, Daniel J. (East Malling Research)
Lopez Girona, Elena (East Malling Research)
Bushakra, Jill (The New Zealand Institute for Plant & Food Research Ltd)
Cestaro, Alessandro (Fondazione Edmund Mach. Istituto agrario di San Michele all'Adige)
Crowhurst, Ross (The New Zealand Institute for Plant & Food Research Ltd)
Pindo, Massimo (Fondazione Edmund Mach. Istituto agrario di San Michele all'Adige)
Cabrera, Antonio (The Ohio State University. Department of Horticulture and Crop Science)
Van der Knaap, Esther (The Ohio State University. Department of Horticulture and Crop Science)
Iezzoni, Amy (Michigan State University. Department of Horticulture)
Gardiner, Susan (The New Zealand Institute for Plant & Food Research Ltd)
Velasco, Riccardo (Fondazione Edmund Mach. Istituto agrario di San Michele all'Adige)
Arús i Gorina, Pere (Centre de Recerca en Agrigenòmica)
Chagné, David (The New Zealand Institute for Plant & Food Research Ltd)
Troggio, Michela (Fondazione Edmund Mach. Istituto agrario di San Michele all'Adige)

Fecha: 2011
Resumen: Background. comparative genome mapping studies in Rosaceae have been conducted until now by aligning genetic maps within the same genus, or closely related genera and using a limited number of common markers. The growing body of genomics resources and sequence data for both Prunus and Fragaria permits detailed comparisons between these genera and the recently released Malus × domestica genome sequence. - Results: we generated a comparative analysis using 806 molecular markers that are anchored genetically to the Prunus and/or Fragaria reference maps, and physically to the Malus genome sequence. Markers in common for Malus and Prunus, and Malus and Fragaria, respectively were 784 and 148. The correspondence between marker positions was high and conserved syntenic blocks were identified among the three genera in the Rosaceae. We reconstructed a proposed ancestral genome for the Rosaceae. - Conclusions: a genome containing nine chromosomes is the most likely candidate for the ancestral Rosaceae progenitor. The number of chromosomal translocations observed between the three genera investigated was low. However, the number of inversions identified among Malus and Prunus was much higher than any reported genome comparisons in plants, suggesting that small inversions have played an important role in the evolution of these two genera or of the Rosaceae.
Nota: Número d'acord de subvenció MICINN/CSD2007-00036
Nota: Número d'acord de subvenció MICINN/INIA/RTA2007-00063-00-00
Nota: 10.1186/1471-2148-11-9
Derechos: Tots els drets reservats
Lengua: Anglès.
Documento: article ; recerca ; publishedVersion
Publicado en: BMC evolutionary biology, Vol. 11 (2011) , art. 9, ISSN 1471-2148



13 p, 1.3 MB

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