Abstract
The genus Arachis (Fabaceae), which originated in South America, consists of 80 species. Based on morphological traits and cross-compatibility among the species, the genus is divided into nine taxonomic sections. Arachis is the largest section including the economically valuable cultivated peanut (A. hypogaea). Seven genic sequences were utilized to better understand the phylogenetic relationships between species of genus Arachis. Our study displayed four clades of species of Arachis. Arachis triseminata was genetically isolated from all other species of Arachis studied, and it formed the basal clade with A. retusa and A. dardani from the most ancient sections Extranervosae and Heteranthae, respectively. Species of section Arachis formed a separated single clade from all other species, within which species having B and D genome clustered in one subgroup and three species characterized with an A genome grouped together in another subgroup. A divergent clade including species from five sections was sister to the clade of section Arachis. Between the sister clades and the basal clade there was a clade containing species from the more advanced sections. Phylogenetic relationships of all the species of Arachis using multiple genic sequences were similar to the phylogenies produced with single-copy genes.
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Claims 8
Claim · model-written summary
The Arachis species formed four clades.
ArachisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our study displayed four clades of species of Arachis.”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
Arachis triseminata was isolated and basal with A. retusa and A. dardani.
- Taxon
- Arachis triseminataArachis triseminatae0
- Outcome
- basal cladee0
- Comparator
- all other species of Arachis studiede0
Verbatim
e0“Arachis triseminata was genetically isolated from all other species of Arachis studied, and it formed the basal clade with A. retusa and A. dardani”
Claim · model-written summary
Section Arachis formed a separate clade.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Species of section Arachis formed a separated single clade from all other species”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
Species with B and D genomes clustered together.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“species having B and D genome clustered in one subgroup”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
Three A-genome species grouped in another subgroup.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three species characterized with an A genome grouped together in another subgroup”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
A divergent clade from five sections was sister to section Arachis.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A divergent clade including species from five sections was sister to the clade of section Arachis.”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
A clade of advanced sections lay between the sister and basal clades.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between the sister clades and the basal clade there was a clade containing species from the more advanced sections.”
e1“The genus Arachis (Fabaceae)”
Claim · model-written summary
Multiple-genic-sequence phylogeny resembled single-copy-gene phylogenies.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phylogenetic relationships of all the species of Arachis using multiple genic sequences were similar to the phylogenies produced with single-copy genes.”
e1“The genus Arachis (Fabaceae)”