Haplotype diversity of VvTFL1A gene and association with cluster traits in grapevine (V. vinifera)
Lucie Fernandez, Loic Le Cunff, Javier Tello, Thierry Lacombe, Jean Michel Boursiquot, Alexandre Fournier-Level, Gema Bravo, Sandrine Lalet, Laurent Torregrosa, Patrice This, Jose Miguel Martinez-Zapater
BMC Plant Biology | BMC | Published : 2014
BACKGROUND: Interaction between TERMINAL FLOWER 1 (TFL1) and LEAFY (LFY) seem to determine the inflorescence architecture in Arabidopsis. In a parallel way, overexpression of VvTFL1A, a grapevine TFL1 homolog, causes delayed flowering and production of a ramose cluster in the reiterated reproductive meristem (RRM) somatic variant of cultivar Carignan. To analyze the possible contribution of this gene to cluster phenotypic variation in a diversity panel of cultivated grapevine (Vitis vinifera L. subsp. vinifera) its nucleotide diversity was characterized and association analyses among detected sequence polymorphisms and phenology and cluster traits was carried out. RESULTS: A total of 3.6 kb ..View full abstract
Awarded by MICINN of Spain
Awarded by COST Action "East-west Collaboration for Grapevine Diversity Exploration and Mobilization of Adaptive Traits for Breeding"
We would like to thank Dr Javier Ibanez and Dr Stephanie Mariette for helpful discussions; Virginia Rodriguez for her assistance for DNA extraction; Dr Carlos Alonso Blanco for his helpful comments and critical reading of the manuscript; and Dr Vincent Segura is acknowledged for assistance using MLMM software and critical reading of the manuscript. This work was funded by grant BIO2008-03892 and BIO2011-026229 from the MICINN and MINECO of Spain to JMM-Z. Networking activities were also funded by COST Action FA1003 "East-west Collaboration for Grapevine Diversity Exploration and Mobilization of Adaptive Traits for Breeding". JT was recipient of a fellowship from the MICINN.