Chloroplast DNA variation in the wild potato species, Solanum acaule and S. albicans.

Autor: Nakagawa, Kumi, Uehara, Hideyuki, Hosaka, Kazuyoshi
Zdroj: Euphytica; Dec2000, Vol. 116 Issue 3, p197-202, 6p
Abstrakt: The chloroplast DNA of Solanum acaule (109 accessions) and S. albicans (9 accessions) was investigated by restriction endonuclease analysis. Unexpectedly, all the accessions analyzed had C type chloroplast DNA in common. This suggested that S. acaule originated from a species with C type chloroplast DNA. DraI restriction digestion revealed further differentiation of C type chloroplast DNA into 8 types. The DraI polymorphism indicated the province of Salta in Argentina and the nearby regions to be a center of diversity for S. acaule. Surprisingly, S. albicans as well as S. acaule both ssp. acaule and ssp. punae, from Peru were virtually indistinguishable, although by morphology and/or cytology all three taxa are easily distinguished. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index