Quantitative trait loci (QTLs) analysis of palm oil fatty acid composition in an interspecific pseudo-backcross from Elaeis oleifera (HBK) Cort,s and oil palm (Elaeis guineensis Jacq.)
Montoya, Carmenza | Lopes, Ricardo | Flori, Albert | Cros, David | Cuellar, Teresa | Summo, Maryline | Espeout, Sandra | Rivallan, Ronan | Risterucci, Ange-Marie | Bittencourt, Daniela | Zambrano, Jorge R. | Alarcon G, Wilmar H. | Villeneuve, Pierre | Pina, Michel | Nouy, Bruno | Amblard, Philippe | Ritter, Enrique | Leroy, Thierry | Billotte, Norbert | Oil Palm Biol & Breeding Program ; Oil Palm Res Ctr Cenipalma | Mol Biol Lab ; Brazilian Agricultural Research Corporation = Empresa Brasileira de Pesquisa Agropecuária (Embrapa) | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | Hacienda La Cabana SA | Indupalma S.A. (LTDA) | Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | PalmElit | Dept Biotecnol ; NEIKER | Centro de Investigaciones en Palma de Aceite (CENIPALMA), Colombia; International Consortium Oil Palm Genome Projects (OPGP); Genoscope-CEA (Evry, France)
IATE Axe 4 : Biotechnologie microbienne et enzymatique des lipides et des agropolymères
Показать больше [+] Меньше [-]Английский. We chose an Elaeis interspecific pseudo-backcross of first generation (E. oleifera x E. guineensis) x E. guineensis to identify quantitative trait loci (QTLs) for fatty acid composition of palm oil. A dense microsatellite linkage map of 362 loci spanned 1.485 cM, representing the 16 pairs of homologous chromosomes in the Elaeis genus from which we traced segregating alleles from both E. oleifera and E. guineensis grandparents. The relative linear orders of mapped loci suggested the probable absence of chromosome rearrangements between the E. oleifera and E. guineensis genomes. A total of 19 QTL associated to the palm oil fatty acid composition were evidenced. The QTL positions and the species origin as well as the estimated effects of the QTL marker alleles were in coherence with the knowledge of the oil biosynthesis pathway in plants and with the individual phenotypic correlations between the traits. The mapping of chosen Elaeis key genes related to oleic acid C18:1, using intra-gene SNPs, supported several QTLs underlying notably FATA and SAD enzymes. The high number of hyper-variable SSR loci of known relative linear orders and the QTL information make these resources valuable for such mapping study in other Elaeis breeding materials.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Institut national de la recherche agronomique