News
11.24.2021 - New Preprint
Characterization of the grape powdery mildew genetic resistance loci in Muscadinia rotundifolia Trayshed
Muscadinia rotundifolia cv. Trayshed is a valuable source of resistance to grape powdery mildew (PM). It carries two PM resistance (R) loci, Run1.2 on chromosome 12 and Run2.2 on chromosome 18. This study identified the nucleotide-binding leucine-rich repeat (NLR) genes composing each R locus and their associated defense mechanisms.[... see more]
11.15.2021 - New Preprint
Assembly of complete diploid phased chromosomes from draft genome sequences
HaploSync uses a genetic map and/or the genome of a closely related species to guide the scaffolding of a diploid assembly into phased pseudomolecules for each chromosome. It compares alternative haplotypes to identify and correct misassemblies independent of a reference, fills assembly gaps with unplaced sequences, and resolves collapsed homozygous regions.[... see more]
06.02.2021 - New Paper
Rootstock influences the effect of grapevine leafroll-associated viruses on berry development and metabolism via abscisic acid signalling
Using a dedicated experimental vineyard, we studied the responses to Grapevine leafroll-associated virus (GLRaV) in ripening berries from Cabernet Franc grapevines grafted to different rootstocks and with zero, one, or pairs of leafroll infection(s). [... see more]
04.12.2021 - New genome available
Vitis vinifera cv. Riesling cl. FPS 24
Vitis vinifera cv. Riesling cl. FPS 24 is now publicly available on the website. Used in Zou et al. 2021, the genome was assembled in diploid-aware fashion from SMRT sequencing long reads. Follow this link to dedicated page with dwonloads and online resources.
04.12.2021 - New Paper
Multiple independent recombinations led to hermaphroditism in grapevine
We studied the grape sex-determining region (SDR) in 12 Vitis genomes and demonstrated its conservation across 556 genotypes including 193 accessions from 47 world-wide wild grapevine species and 363 accessions of cultivated grapevine. Although the grape SDR is recombination free in all wild species, we found two distinct hermaphrodite (H) haplotypes [... see more]
02.17.2021 - New genome available
Vitis vinifera cv. Cabernet Franc clone FPS04
Vitis vinifera cv. Cabernet Franc clone FPS04 - Genome browser and blast resources have been released for the draft assembly and annotation of Cabernet Franc genome
02.10.2021 - New genome available
Muscadinia rotundifolia cv. Trayshed genome v2.0: diploid chromosome-scale assembly
Muscadinia rotundifolia cv. Trayshed v2.0 is now publicly available on the website. Used in Cochetel et al. 2021, the new assembly reports the sequences in a diploid chromosome-scale genome. Follow this link to dedicated page with dwonloads and online resources.
02.10.2021 - New Paper
Diploid chromosome-scale assembly of the Muscadinia rotundifolia genome supports chromosome fusion and disease resistance gene expansion during Vitis and Muscadinia divergence
Muscadinia rotundifolia, has been cultivated for centuries in the southeastern United States and is resistant to pathogens that detrimentally affect Vitis vinifera. Single molecule real-time reads were combined with optical maps to reconstruct the two haplotypes of each of the 20 M. rotundifolia chromosomes [... see more]
06.09.2020 - New Paper
The genetic basis of sex determination in grapes
It remains a major challenge to identify the genes and mutations that lead to plant sexual differentiation. Here, we study the structure and evolution of the sex-determining region (SDR) in Vitis species. We report an improved, chromosome-scale Cabernet Sauvignon genome sequence and the phased assembly of nine wild and cultivated grape genomes [... see more]
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