Synteny conservation between two distantly-related Rosaceae genomes : Prunus (the stone fruits) and Fragaria (the strawberry)
Vilanova, Santiago (Centre de Recerca en Agrigenòmica)
Sargent, Daniel J. (East Malling Research)
Arús i Gorina, Pere (Centre de Recerca en Agrigenòmica)
Monfort, Amparo (Centre de Recerca en Agrigenòmica)

Data:	2008
Resum:	BACKGROUND: the Rosaceae encompass a large number of economically-important diploid and polyploid fruit and ornamental species in many different genera. The basic chromosome numbers of these genera are x = 7, 8 and 9 and all have compact and relatively similar genome sizes. Comparative mapping between distantly-related genera has been performed to a limited extent in the Rosaceae including a comparison between Malus (subfamily Maloideae) and Prunus (subfamily Prunoideae); however no data has been published to date comparing Malus or Prunus to a member of the subfamily Rosoideae. In this paper we compare the genome of Fragaria, a member of the Rosoideae, to Prunus, a member of the Prunoideae. - RESULTS: the diploid genomes of Prunus (2n = 2x = 16) and Fragaria (2n = 2x = 14) were compared through the mapping of 71 anchor markers - 40 restriction fragment length polymorphisms (RFLPs), 29 indels or single nucleotide polymorphisms (SNPs) derived from expressed sequence tags (ESTs) and two simple-sequence repeats (SSRs) - on the reference maps of both genera. These markers provided good coverage of the Prunus (78%) and Fragaria (78%) genomes, with maximum gaps and average densities of 22 cM and 7. 3 cM/marker in Prunus and 32 cM and 8. 0 cM/marker in Fragaria. - CONCLUSION: our results indicate a clear pattern of synteny, with most markers of each chromosome of one of these species mapping to one or two chromosomes of the other. A large number of rearrangements (36), most of which produced by inversions (27) and the rest (9) by translocations or fission/fusion events could also be inferred. We have provided the first framework for the comparison of the position of genes or DNA sequences of these two economically valuable and yet distantly-related genera of the Rosaceae.
Ajuts:	Ministerio de Ciencia e Innovación INIA/RTA2007-00063-00-00
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	BMC plant biology, Vol. 8 (2008) , art. 67, ISSN 1471-2229

DOI: 10.1186/1471-2229-8-67
PMID: 18564412

12 p, 490.8 KB

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