3 Works

Exploration of the yield potential of mesoamerican wild common beans from contrasting eco-geographic regions by nested recombinant inbred populations

Paul Gepts, Jorge Berny Mier Y Teran, Eneas Konzen, Siu Mui Tsai & Antonia Palkovic
Genetic analyzes and utilization of wild genetic variation in common bean (Phaseolus vulgaris L.) for crop improvement have been hampered by evaluation difficulties, identification of advantageous variation, and linkage drag. The lack of adaptation to field conditions and the existence of highly structured populations make association mapping of diversity panels not optimal. Joint linkage mapping of nested populations avoids the later constraint, while populations crossed with a common domesticated parent allow the evaluation of wild...

Effect of Drought Stress on the Genetic Architecture of Photosynthate Allocation and Remobilization in Pods of Common Bean (Phaseolus vulgaris L.), a Key Species for Food Security

Paul Gepts, Jorge Carlos Berny Mier Y Teran, Enéas R. Konzen, Antonia Palkovic, Siu M. Tsai, Idupulapati M. Rao & Stephen Beebe
Background: Common bean is the most important staple grain legume for direct human consumption and nutrition. It complements major sources of carbohydrates, including cereals, root crop, or plantain, as a source of dietary proteins. It is also a significant source of vitamins and minerals like iron and zinc. To fully play its nutritional role, however, its robustness against stresses needs to be strengthened. Foremost among these is drought, which commonly affects its productivity and seed...

Root and shoot variation in relation to potential intermittent drought adaptation of Mesoamerican wild common bean (Phaseolus vulgaris L.)

Paul Gepts, Jorge Carlos Berny Mier Y Teran, Enéas R Konzen, Viviana Medina, Antonia Palkovic, Andrea Ariani, Siu M. Tsai & Matthew E. Gilbert
• Background Wild crop relatives have been potentially subjected to stresses on an evolutionary time scale prior to domestication. Among these stresses, drought is one of the main factors limiting crop productivity and its impact is likely to increase under current scenarios of global climate change. We sought to determine to what extent wild common bean (Phaseolus vulgaris) exhibited adaptation to drought stress, whether this potential adaptation is dependent on the climatic conditions of the...

Registration Year

  • 2020
  • 2019

Resource Types

  • Dataset


  • University of Sao Paulo
  • University of California, Davis
  • Centro Internacional de Agricultura Tropical
  • Federal University of Rio Grande do Sul