Specific LTR-Retrotransposons Show Copy Number Variations between Wild and Cultivated Sunflowers.

ABSTRACT: The relationship between variation of the repetitive component of the genome and domestication in plant species is not fully understood. In previous work, variations in the abundance and proximity to genes of long terminal repeats (LTR)-retrotransposons of sunflower (Helianthus annuus L.) were investigated by Illumina DNA sequencingtocompare cultivars and wild accessions. In this study, we annotated and characterized 22 specific retrotransposon families whose abundance varies between domesticated and wild genotypes. These families mostly belonged to the Chromovirus lineage of the Gypsy superfamily and were distributed overall chromosomes. They were also analyzed in respect to their proximity to genes. Genes close to retrotransposon were classified according to biochemical pathways,

SUBMITTER: Mascagni F 

PROVIDER: S-EPMC6162735 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature