Somatic variants for seed and fruit set in grapevine
نویسندگان
چکیده
Abstract Background Grapevine reproductive development has direct implications on yield. It also impacts berry and wine quality by affecting traits like seedlessness, bunch size, cluster compactness skin to pulp ratio. Seasonal fluctuations in yield, fruit composition attributes, which are largely driven climatic factors, major challenges for worldwide table grape industry. Accordingly, a better understanding of processes such as gamete development, fertilization, seed set is paramount relevance managing yield quality. With the aim providing new insights into this field, we searched clones with contrasting content two germplasm collections. Results We identified eight variant pairs that seemingly differ only seed-related characteristics while showing identical genotype when tested GrapeReSeq_Illumina_20K_SNP_chip several microsatellites. performed multi-year observations deriving from different pollination treatments, special emphasis pair composed Sangiovese its seedless locally named Corinto Nero. The pollen Nero failed germinate vitro gave poor used pollinate other varieties. Most berries both open- cross-pollinated inflorescences did not contain seeds. genetic analysis seedlings derived occasional normal seeds revealed few functional gametes mostly unreduced. Moreover, three genotypes, including Nero, were unexpectedly found develop fruits without contribution occasionally showed normal-like Five missense single nucleotide polymorphisms between transcriptomic data. Conclusions Our allowed us attribute seedlessness type some variants it was documented literature. Interestingly, VvAGL11 mutation responsible Sultanina stenospermocarpy discovered mutant Gouais Blanc. suggest parthenocarpy and/or embryo sac defects, events likely arise meiotic anomalies. suitable testing traceability markers propagated material candidates phenotype.
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ژورنال
عنوان ژورنال: BMC Plant Biology
سال: 2021
ISSN: ['1471-2229']
DOI: https://doi.org/10.1186/s12870-021-02865-2