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Genetic structure of Lycopersicon pimpinellifolium (Solanaceae) populations collected after the ENSO event of 1997-1998

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Genetic structure of Lycopersicon pimpinellifolium (Solanaceae) populations collected after the ENSO event of 1997-1998

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dc.contributor.author Sifres Cuerda, Alicia Gemma es_ES
dc.contributor.author Picó Sirvent, María Belén es_ES
dc.contributor.author Blanca Postigo, José Miguel es_ES
dc.contributor.author De Frutos, R. es_ES
dc.contributor.author Nuez Viñals, Fernando es_ES
dc.date.accessioned 2016-06-02T09:46:08Z
dc.date.available 2016-06-02T09:46:08Z
dc.date.issued 2007-03
dc.identifier.issn 0925-9864
dc.identifier.uri http://hdl.handle.net/10251/65094
dc.description.abstract The greatest extent of genetic variation and outcrossing for Lycopersicon pimpinellifolium occurs in northern Peru. This is also the area most affected by EI Nino Southern Oscillation (ENSO). Using morphological and the molecular markers SSRs and AFLPs, we studied the genetic structure of L. pimpinellifolium populations collected after the ENSO event of 1997-1998. This was the most intense in the last century and caused a vast increase in the size of L. pimpinellifolium populations. Populations in the area surveyed were not regionally differentiated. We did not find any cline or eco-geographic association for genetic diversity, and positive correlations between genetic and geographic distances were found only at very short distances. Flooding and water streams caused by ENSO might have facilitated a periodical seed migration from distant areas. Gene flow between populations could then occur, facilitated by the increase in the population sizes of plants and pollinators and by the high levels of stigmatic exsertion. Results revealed a significant lack of heterozygotes in comparison with those expected in a panmictic population without consanguinity. A high degree of endogamy was found in all populations. In this context, endogamy can be explained by the occurrence of crosses between relatives rather than by autogamy. In an area intensely disturbed by ENSO, we found a population that had not been reported by earlier collectors in this region. This yellow-fruited population remained morphologically and molecularly differentiated from all L. pimpinellifolium and L. esculentum populations analyzed. es_ES
dc.language Inglés es_ES
dc.publisher Springer Verlag (Germany) es_ES
dc.relation.ispartof Genetic Resources and Crop Evolution es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject AFLPs es_ES
dc.subject ENSO es_ES
dc.subject Genetic structure es_ES
dc.subject Lycopersicon pimpinellifolium es_ES
dc.subject Northern Peru es_ES
dc.subject SSRs es_ES
dc.subject.classification GENETICA es_ES
dc.title Genetic structure of Lycopersicon pimpinellifolium (Solanaceae) populations collected after the ENSO event of 1997-1998 es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s10722-005-5725-4
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana - Institut Universitari de Conservació i Millora de l'Agrodiversitat Valenciana es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.description.bibliographicCitation Sifres Cuerda, AG.; Picó Sirvent, MB.; Blanca Postigo, JM.; De Frutos, R.; Nuez Viñals, F. (2007). Genetic structure of Lycopersicon pimpinellifolium (Solanaceae) populations collected after the ENSO event of 1997-1998. Genetic Resources and Crop Evolution. 54(2):359-377. doi:10.1007/s10722-005-5725-4 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1007/s10722-005-5725-4 es_ES
dc.description.upvformatpinicio 359 es_ES
dc.description.upvformatpfin 377 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 54 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 32436 es_ES
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