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Introgression of cultivated sunflower in exotic Helianthus petiolaris populations JBAG
Gutiérrez,A; Cantamutto,M; Poverene,M.
Cultivated sunflower Helianthus annuus and the wild exotic H. petiolaris are sympatric species in an extensive region of central Argentina. Both species are sexually compatible, they overlap their flowering time and share pollinators in the region. Although there are important barriers to introgression between them, interspecific hybrids are occasionally found in contact zones. We present evidences of crop introgression in H. petiolaris populations under natural conditions and controlled and semi-controlled crosses in the experimental field using morphological traits. If crop genes persist in subsequent generations after hybridization, it could then be possible to find crop morphological traits and molecular markers in hybrid offsprings. Plants of H....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop-wild; Intermediate morphology; Interspecific hybridization; RAPD.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332012000100003
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