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キーワード:
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要旨:
Grapevine is the most valuable fruit crop in the world, mainly grown for wine elaboration and to sustain fresh grape and raisin markets. Adverse effects of climate change-derived environmental conditions on viticulture systems predict a decline in fruit quality and crop yield, so understanding the genetic and molecular mechanisms determining crop yield components is essential to develop long-term strategies to increase grapevine resilience. The analysis of a collection of grapevine cultivars of different use (wine, table, multi-purpose) allowed us to evaluate the relationship between various yield components (flowers per inflorescence, fruit set, berries per cluster) and different abnormal reproductive conditions (coulure, millerandage) that may happen during the grapevine developmental cycle. The great phenotypic variation observed for these traits in this grapevine collection has been used for an association study that considered 15,309 single nucleotide polymorphisms (SNPs) detected in the sequence of 289 candidate genes scattered across the 19 grapevine linkage groups.
