AI Article Synopsis
- Potatoes are a globally significant crop, and studying their genomic sequences helps understand their diversity and evolutionary variations.
- Researchers sequenced the genomes of 15 Russian potato cultivars and compared them to 12 South American varieties, finding differences in genetic diversity and copy number variations (CNVs).
- Notable discoveries include genes linked to immune responses, tuber development, and a potential new gene related to circadian rhythm regulation in Russian potatoes.
Article Abstract
L. (common potato) is one of the most important crops produced almost all over the world. Genomic sequences of potato opens the way for studying the molecular variations related to diversification. We performed a reconstruction of genomic sequences for 15 tetraploid potato cultivars grown in Russia using short reads. Protein-coding genes were identified; conserved and variable parts of pan-genome and the repertoire of the NBS-LRR genes were characterized. For comparison, we used additional genomic sequences for twelve South American potato accessions, performed analysis of genetic diversity, and identified the copy number variations (CNVs) in two these groups of potato. Genomes of Russian potato cultivars were more homogeneous by CNV characteristics and have smaller maximum deletion size in comparison with South American ones. Genes with different CNV occurrences in two these groups of potato accessions were identified. We revealed genes of immune/abiotic stress response, transport and five genes related to tuberization and photoperiod control among them. Four genes related to tuberization and photoperiod were investigated in potatoes previously (phytochrome A among them). A novel gene, homologous to the poly(ADP-ribose) glycohydrolase (PARG) of , was identified that may be involved in circadian rhythm control and contribute to the acclimatization processes of Russian potato cultivars.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10059000 | PMC |
| http://dx.doi.org/10.3390/ijms24065713 | DOI Listing |
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