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The Genetic make-up of the European landraces of the common bean

Angioi, Simonetta Agostina and Rau, Domenico and Nanni, Laura and Bellucci, Elisa and Papa, Roberto and Attene, Giovanna (2011) The Genetic make-up of the European landraces of the common bean. Plant Genetic Resources: characterization and utilization, Vol. 9 (2), p. 197-201. eISSN 1479-263X. Article.

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DOI: 10.1017/S1479262111000190


Here, we present a brief overview of the main studies conducted on the common bean (Phaseolus vulgaris L.) in Europe and other countries outside its centres of origin. We focus on the proportions of the Andean and Mesoamerican gene pools, and on the inter-gene pool hybridization events. In Europe, for chloroplast microsatellites, 67% of European germplasm is of Andean origin. Within Europe, interesting trends have been seen; indeed, the majority of the Andean type is found in the three macro-areas of the Iberian Peninsula, Italy and central-northern Europe, while, in eastern and south-eastern Europe, the proportion of the Mesoamerican type increased. On a local scale, the contribution of the Mesoamerican type is always low. On other continents, various situations are seen using different markers: in China and Brazil, the Mesoamerican gene pool prevails, while in an African sample, overall, both gene pools are equally represented, with differences in individual countries. The frequency of European bean genotypes deriving from at least one hybridization event was 44% with an uneven distribution. Interestingly, hybrids tend to have intermediate seed size in comparison with ‘pure’ Andean or Mesoamerican types. On other continents, very few hybrids are found, probably because of the different marker systems used.

Item Type:Article
ID Code:5986
Uncontrolled Keywords:Introgression, Mesoamerican and Andean gene pools, Phaseolus vulgaris
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/07 Genetica agraria
Divisions:001 Università di Sassari > 02 Centri > Centro per la conservazione e valorizzazione della biodiversità vegetale
001 Università di Sassari > 01 Dipartimenti > Scienze agronomiche e genetica vegetale agraria
Publisher:Cambridge University Press
Copyright Holders:© NIAB 2011
Deposited On:21 Apr 2011 10:07

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