Phylogenetic Determination of Chenopodium quinoaBased on the Chloroplast Genes rbcL and matK

Chenopodium quinoa is an Andean species of great interest because of its excellent nutritional quality and great adaptability to different environmental conditions. In addition, the high phenotypic diversity has caused difficulties in the correct taxonomic identification, and there are few studies o...

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Bibliographic Details
Published in:International journal of agronomy 2023-12, Vol.2023, p.1-9
Main Authors: Manjarres-Hernández, Elsa Helena, Morillo-Coronado, Ana Cruz
Format: Article
Language:English
Subjects:
Adaptability
Amino acids
Base composition
Chenopodium quinoa
Chloroplasts
Composition
Domestication
Environmental conditions
Evolution
Genes
Genetic diversity
Nucleotides
Nutritive value
Phylogenetics
Phylogeny
Quinoa
RbcL gene
Seeds
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Summary:Chenopodium quinoa is an Andean species of great interest because of its excellent nutritional quality and great adaptability to different environmental conditions. In addition, the high phenotypic diversity has caused difficulties in the correct taxonomic identification, and there are few studies on the phylogenetic relationships of quinoa in Colombia. Therefore, the objective of this research was to determine the phylogenetic relationships of quinoa with the matK and rcbL chloroplastid genes to characterize the genetic diversity in Colombian quinoa. Evolutionary analyses were performed using nucleotide substitution rates, pattern, base composition, and phylogeny construction. The rbcL gene presented approximately 1344 bp, and matK had 646 bp, which were translated into 434 and 215 amino acids, respectively. The nucleotide composition of the genes showed high percentages of similarity and identity with the Chenopodium quinoa sequences registered in GenBank and BOLD. Similar phylogenetic trees were obtained with the rbcL and matK genes, and both concatenated sequences grouped the accessions into clades. The results showed that Colombian quinoa has low rates of genetic differentiation that may be due to the domestication processes of the species, the lack of certified seeds, and the constant exchange of seeds between farmers in the principal producing areas of the Andean region.
ISSN:1687-8159
1687-8167
DOI:10.1155/2023/6681851