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- W4238977992 abstract "Chloroplast DNA restriction site analysis has been used to test Hawkes's phylogenetic interpretations of the genomic data in Solanum sect. Petota. Hawkes hypothesized a diploid (2n = 24) origin of the tuber-bearing members of this group (subsection Potatoe) in Mexico and Central America (as a B genome) with later migrations and evolution to an A genome in South America, later followed by a return migration of the A genome to Mexico and Central America with A × B hybridizations and polyploidizations to produce ser. Longipedicellata (4x) and Demissa (6x). Our results provide partial support for this hypothesis by demonstrating the paraphyletic and primitive nature of the B genome species group, and the monophyletic and derived nature of all A genome and A × B genome species, including S. verrucosum, a hypothesized A genome progenitor of ser. Demissa. Thus, the Mexican and Central American polyploid species must have obtained their cytoplasm from the A genome. However, our results question the Stellata/Rotata hypothesis of Hawkes and the taxonomic placement of S. chomatophilum in ser. Conicibaccata." @default.
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- W4238977992 date "1991-10-01" @default.
- W4238977992 modified "2023-10-14" @default.
- W4238977992 title "Chloroplast DNA Evidence for Genome Differentiation in Wild Potatoes (Solanum Sect. Petota: Solanaceae)" @default.
- W4238977992 doi "https://doi.org/10.2307/2445274" @default.
- W4238977992 hasPublicationYear "1991" @default.
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