Distinct structural variants and repeat landscape shape the genomes of the ancient grapes Aglianico and Falanghina.

ABSTRACT: Mounting evidence recognizes structural variations (SVs) and repetitive DNA sequences as crucial players in shaping the existing grape phenotypic diversity at intra- and inter-species levels. To deepen our understanding on the abundance, diversity, and distribution of SVs and repetitive DNAs, including transposable elements (TEs) and tandemly repeated satellite DNA (satDNAs), we re-sequenced the genomes of the ancient grapes Aglianico and Falanghina. The analysis of large copy number variants (CNVs) detected candidate polymorphic genes that are involved in the enological features of these varieties. In a comparative analysis of Aglianico and Falanghina sequences with 21 publicly available genomes of cultivated grapes, we provided a genome-wide annotation of grape TEs at the lineage level.

SUBMITTER: Aversano R 

PROVIDER: S-EPMC10845522 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature