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The Investigation of Perennial Sunflower Species (Helianthus L.) Mitochondrial Genomes.

Authors :
Makarenko, Maksim
Usatov, Alexander
Tatarinova, Tatiana
Azarin, Kirill
Kovalevich, Alexey
Gavrilova, Vera
Horn, Renate
Source :
Genes; Sep2020, Vol. 11 Issue 9, p982, 1p
Publication Year :
2020

Abstract

The genus Helianthus is a diverse taxonomic group with approximately 50 species. Most sunflower genomic investigations are devoted to economically valuable species, e.g., H. annuus, while other Helianthus species, especially perennial, are predominantly a blind spot. In the current study, we have assembled the complete mitogenomes of two perennial species: H. grosseserratus (273,543 bp) and H. strumosus (281,055 bp). We analyzed their sequences and gene profiles in comparison to the available complete mitogenomes of H. annuus. Except for sdh4 and trnA-UGC, both perennial sunflower species had the same gene content and almost identical protein-coding sequences when compared with each other and with annual sunflowers (H. annuus). Common mitochondrial open reading frames (ORFs) (orf117, orf139, and orf334) in sunflowers and unique ORFs for H. grosseserratus (orf633) and H. strumosus (orf126, orf184, orf207) were identified. The maintenance of plastid-derived coding sequences in the mitogenomes of both annual and perennial sunflowers and the low frequency of nonsynonymous mutations point at an extremely low variability of mitochondrial DNA (mtDNA) coding sequences in the Helianthus genus. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20734425
Volume :
11
Issue :
9
Database :
Complementary Index
Journal :
Genes
Publication Type :
Academic Journal
Accession number :
146316472
Full Text :
https://doi.org/10.3390/genes11090982