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Alvarez, M; Miera, Luis E. Sáenz de; Vega, M. Pérez de la

doi:10.1023/a:1008604127933

Cited by 17 publications

(1 citation statement)

References 24 publications

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“…A comparison between Spanish and Mexican accessions of P. vulgaris and P. coccineus suggested that P. coccineus has maintained a high level of diversity since its introduction into Europe (Alvarez et al, 1998). A more recent study analyzed a worldwide collection of P. coccineus , and this analysis indicated that limited diversity of the runner bean P. coccineus appears to have been introduced into Europe, and that for nuclear markers, the European landraces show a reduction in diversity of 33% compared to that of the Mesoamerican landraces (Spataro et al, 2011).…”

Section: Dissemination Of Phaseolus Crop Species Outside Their Centermentioning

confidence: 99%

Beans (Phaseolus ssp.) as a Model for Understanding Crop Evolution

et al. 2017

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Here, we aim to provide a comprehensive and up-to-date overview of the most significant outcomes in the literature regarding the origin of Phaseolus genus, the geographical distribution of the wild species, the domestication process, and the wide spread out of the centers of origin. Phaseolus can be considered as a unique model for the study of crop evolution, and in particular, for an understanding of the convergent phenotypic evolution that occurred under domestication. The almost unique situation that characterizes the Phaseolus genus is that five of its ∼70 species have been domesticated (i.e., Phaseolus vulgaris, P. coccineus, P. dumosus, P. acutifolius, and P. lunatus), and in addition, for P. vulgaris and P. lunatus, the wild forms are distributed in both Mesoamerica and South America, where at least two independent and isolated episodes of domestication occurred. Thus, at least seven independent domestication events occurred, which provides the possibility to unravel the genetic basis of the domestication process not only among species of the same genus, but also between gene pools within the same species. Along with this, other interesting features makes Phaseolus crops very useful in the study of evolution, including: (i) their recent divergence, and the high level of collinearity and synteny among their genomes; (ii) their different breeding systems and life history traits, from annual and autogamous, to perennial and allogamous; and (iii) their adaptation to different environments, not only in their centers of origin, but also out of the Americas, following their introduction and wide spread through different countries. In particular for P. vulgaris this resulted in the breaking of the spatial isolation of the Mesoamerican and Andean gene pools, which allowed spontaneous hybridization, thus increasing of the possibility of novel genotypes and phenotypes. This knowledge that is associated to the genetic resources that have been conserved ex situ and in situ represents a crucial tool in the hands of researchers, to preserve and evaluate this diversity, and at the same time, to identify the genetic basis of adaptation and to develop new improved varieties to tackle the challenges of climate change, and food security and sustainability.

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Section: Dissemination Of Phaseolus Crop Species Outside Their Centermentioning

confidence: 99%

Beans (Phaseolus ssp.) as a Model for Understanding Crop Evolution

et al. 2017

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Assessment of runner bean (Phaseolus coccineus L.) germplasm for tolerance to low temperature during early seedling growth

et al. 2006

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The runner bean requires moderately high temperatures for optimum germination and growth. Low temperature at sowing delays both germination and plant emergence, and can reduce establishment of beans planted early in the growing season. The objective of this work was to identify potential runner bean germplasm with tolerance to low temperature and to assess the role of this germplasm for production and breeding. Seeds of 33 runner bean accessions were germinated in a climate-controlled chamber at optimal (17°C-day/15°C-night) and at sub-optimal (14°C-day/8°C-night) temperature. The low temperature tolerance was evaluated on the basis of germination, earliness, ability to grow and vigor. Differences in agronomical characters were significant at low temperatures for germination, earliness, ability to grow and early vigor except for emergence score. The commercial cultivars Painted Lady Bi-color, Scarlet Emperor, the Rwanda cultivar NI-15c, and the Spanish cultivars PHA-0013, PHA-0133, PHA-0311, PHA-0664, and PHA-1025 had the best performance under cold conditions.

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