Rattanawong Ratchanee, Prapan Kanlaya, Lekawipat Napawan, Teerawatanasuk Kannikar, Kasemsap Poonpipope, Bonfils Frédéric, Char Christine, Delpuech Elodie, Seguin Marc, Clément-Demange André.
2009. Detection of QTLs associated with growth, latex production and quality for the development of Marker assisted selection (Hevea brasiliensis).
In : 3rd IRRDB Workshop on the Hevea Genome and Transcriptome (Book of abstracts), 3-5 June, 2009, Montpellier, France. CIRAD, IFC, IRRDB
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Utilisation soumise à autorisation de l'auteur ou du Cirad. 550368.pdf Télécharger (1MB) | Prévisualisation |
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Résumé : The objective of this study was to analyse the genetic determinism of the traits of interest for rubber tree breeding through QTL mapping approach: growth, latex production and rubber quality. The plant material consisted of 196 progenies derived from the F1 family RRIM600 x PB217. A genetic linkage map was built for this family with 229 SSR markers (microsatellites) and 198 AFLP markers. Phenotyping was carried out over a 6- year period on a field trial of 5 hectares, with around 2400 trees measured individually. Unexpected results were obtained with the identification of 1 QTL with major effects for each of the 2 traits, growth and latex production. The 2 parents, RRIM600 and PB217 bring a favourable allele at these 2 main QTLs. This result proved that, even in the genetic pool of elite varieties (Wickham clones), a significant genetic progress is still possible in rubber tree breeding, and that it can be monitored using marker aided selection. A second interesting result is the identification of pleiotropy of at least one major QTL, with effects on traits such as latex production and rubber quality.
Mots-clés Agrovoc : Hevea brasiliensis
Mots-clés géographiques Agrovoc : France, Thaïlande
Classification Agris : F30 - Génétique et amélioration des plantes
Auteurs et affiliations
- Rattanawong Ratchanee, RRIT (THA)
- Prapan Kanlaya, RRIT (THA)
- Lekawipat Napawan, RRIT (THA)
- Teerawatanasuk Kannikar, RRIT (THA)
- Kasemsap Poonpipope, Kasetsart University (THA)
- Bonfils Frédéric, CIRAD-PERSYST-UMR IATE (FRA) ORCID: 0000-0001-7016-4770
- Char Christine, CIRAD-PERSYST-UMR IATE (FRA)
- Delpuech Elodie
- Seguin Marc, CIRAD-BIOS-UMR DAP (FRA)
- Clément-Demange André, CIRAD-BIOS-UMR DAP (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/550368/)
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