Andrea M. Clausen

TL;DR: DNA sequence data of the waxy gene is used to infer relationships among the four species of cultivated potatoes accepted in the latest taxonomic treatment and support prior ideas of hybrid origins of S. ajanhuiri, S. juzepczukii and S. tuberosum.

TL;DR: AMOVA revealed that most of the genetic variation occurred among sites within departments and among local varieties, and considering the agricultural practices carried out in the Andean farming system.

TL;DR: The hypothesis that the Tnt1 superfamily was present early in the evolution of Solanaceae is supported and the evidence suggests that the RNAseH region of Tnt 1 became fixed at the host genus level whereas, within each genus, propagation was ensured by the diversification of the U3 region.

TL;DR: In periodical regenerations of accessions, variability was detected for morphology and breeding barriers, and high molecular variability and extensive overlapping was revealed in sympatric populations of wild potatoes.

TL;DR: A potato collecting expedition was carried out in the province of Jujuy, Argentina in March 24 to April 15, 2001, to collect local cultivars of potatoes and wild potato species, covering high mountain valleys not previously collected or areas where germplasm was not available.