Fruit quality is one of the main bottlenecks for apricot consumers. Despite the relevance of phenotyping during the field evaluation phase in breeding programmes, the molecular bases of fruit quality have been poorly investigated. The identification of genomic regions involved in fruit quality traits can be pursued by joining the phenotypic data with a molecular-based approach. The related QTL definition offers the opportunity to optimize the apricot breeding programmes by introducing an early marker assisted selection (MAS), and identify candidate genes related to these traits. These are the main objectives of the ISAFRUIT WP6.1 European IP Project concerning peach, apricot and apple fruits. On apricot, INRA UGAFL Avignon (Fr) and DCA, University of Bologna (It) were in charge of the characterization of two apricot populations: ‘Goldrich’ × ‘Moniquí’ and ‘Lito × BO81604311’ (of about 120 seedlings each). Both progenies have been characterized over two consecutive years for several physical and chemical characters (blooming and maturity dates, fresh weight, firmness, colour, dry matter, kernel weight, flesh adhesion, acid and sugar contents). Genetic linkage maps of each population were constructed by SSRs markers and QTLs analyses were performed for all the investigated quality traits. Several QTLs, distributed in all the linkage groups, were detected in both populations for all the analyzed traits except fruit firmness. A good QTL stability was observed between years and this offers an interesting opportunity to use the related markers in an MAS process.

ISAFRUIT European project: QTLs and candidate genes for quality traits in apricot.

DONDINI, LUCA;ADAMI, MARCO;CERVELLATI, CLAUDIA;DE FRANCESCHI, PAOLO;TARTARINI, STEFANO;SANSAVINI, SILVIERO;
2010

Abstract

Fruit quality is one of the main bottlenecks for apricot consumers. Despite the relevance of phenotyping during the field evaluation phase in breeding programmes, the molecular bases of fruit quality have been poorly investigated. The identification of genomic regions involved in fruit quality traits can be pursued by joining the phenotypic data with a molecular-based approach. The related QTL definition offers the opportunity to optimize the apricot breeding programmes by introducing an early marker assisted selection (MAS), and identify candidate genes related to these traits. These are the main objectives of the ISAFRUIT WP6.1 European IP Project concerning peach, apricot and apple fruits. On apricot, INRA UGAFL Avignon (Fr) and DCA, University of Bologna (It) were in charge of the characterization of two apricot populations: ‘Goldrich’ × ‘Moniquí’ and ‘Lito × BO81604311’ (of about 120 seedlings each). Both progenies have been characterized over two consecutive years for several physical and chemical characters (blooming and maturity dates, fresh weight, firmness, colour, dry matter, kernel weight, flesh adhesion, acid and sugar contents). Genetic linkage maps of each population were constructed by SSRs markers and QTLs analyses were performed for all the investigated quality traits. Several QTLs, distributed in all the linkage groups, were detected in both populations for all the analyzed traits except fruit firmness. A good QTL stability was observed between years and this offers an interesting opportunity to use the related markers in an MAS process.
XIV International Symposium on Apricot Breeding and Culture
587
592
Ruiz D.; Dondini L.; Adami M; Cervellati C.; De Franceschi P.; Bureau S.; Gouble B.; Reich M.; Renard C.M.G.C.; Tartarini S.; Lambert P.; Bassi D.; Sansavini S.; Audergon J.M .
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/90961
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? ND
social impact