Deciphering species relationships and evolution in Chenopodium through sequence variations in nuclear internal transcribed spacer region and amplified fragment-length polymorphism in nuclear DNA

Evaluation of sequence variations in the internal transcribed spacer (ITS) region of 19 accessions, comprising of 11 accessions of Chenopodium quinoa , eight accessions of Chenopodium album and 165 retrieved sequences of different species of Chenopodium belonging to subfamily Chenopodioideae reveale...

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Bibliographic Details
Published in:Journal of genetics 2019-06, Vol.98 (2), p.1-11, Article 37
Main Authors: Chrungoo, Nikhil K., Jashmi Devi, Rajkumari, Goel, Shailendra, Das, Kamal
Format: Article
Language:English
Subjects:
Amplified Fragment Length Polymorphism Analysis
Animal Genetics and Genomics
Biomedical and Life Sciences
Chenopodiaceae
Chenopodium
Chenopodium - classification
Chenopodium - genetics
Computational Biology - methods
DNA
DNA, Ribosomal Spacer - genetics
Ethylenediaminetetraacetic acid
Evolution
Evolution, Molecular
Evolutionary Biology
Genetic aspects
Genetic diversity
Genetic polymorphisms
Genetic Variation
Life Sciences
Microbial Genetics and Genomics
Nucleic Acid Conformation
Nucleotide sequence
Phylogeny
Plant Genetics and Genomics
Polymerase Chain Reaction
Quinoa
Research Article
Sequence Analysis, DNA
Spacer region
Species
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Summary:Evaluation of sequence variations in the internal transcribed spacer (ITS) region of 19 accessions, comprising of 11 accessions of Chenopodium quinoa , eight accessions of Chenopodium album and 165 retrieved sequences of different species of Chenopodium belonging to subfamily Chenopodioideae revealed a higher intraspecific genetic diversity in Himalayan C. album than that in C. quinoa . ITS and amplified fragment-length profiles of the accessions suggest the existence of accessions of Himalayan C. album as heteromorphs of the same species rather than a heterogenous assemblage of taxa. While the evolutionary relationship reconstructed from variations in 184 sequences of ITS region from species belonging to Chenopodiaceae, Amaranthaceae, Polygonaceae and Nelumbonaceae established a paraphyletic evolution of family Chenopodiaceae, it also revealed a monophyletic evolution of Chenopodieae I. The reconstruction also established five independent lineages of the subfamily Chenopodioideae with C. album as a sister clade of C. quinoa within the tribe Chenopodieae I. The results also indicate a much younger age for Himalayan chenopods ( C . album ) than the reported crown age of Chenopodieae I.
ISSN:0022-1333
0973-7731
DOI:10.1007/s12041-019-1079-0