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Int. J. Mol. Sci. 2017, 18(3), 493; doi:10.3390/ijms18030493

Short-Term Local Adaptation of Historical Common Bean (Phaseolus vulgaris L.) Varieties and Implications for In Situ Management of Bean Diversity

1
INRA–Agrocampus Ouest-ESA Angers, UMR 980 BAGAP, 65 rue de St. Brieuc, CS 84215, 35042 Rennes, France
2
Socio-Économie, Environnement et Développement, Département des Sciences et Gestion de l’Environnement, Liège University, Av. Longwy 185, 6700 Arlon, Belgium
3
Dipartimento di Scienze Agrarie, Alimentari e Ambientali (DSA3), Università degli Studi di Perugia, Borgo XX Giugno 74, 06121 Perugia, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Marcello Iriti
Received: 29 December 2016 / Revised: 3 February 2017 / Accepted: 20 February 2017 / Published: 28 February 2017
(This article belongs to the Special Issue Pulses)
View Full-Text   |   Download PDF [3707 KB, uploaded 28 February 2017]   |  

Abstract

Recognizing both the stakes of traditional European common bean diversity and the role farmers’ and gardeners’ networks play in maintaining this diversity, the present study examines the role that local adaptation plays for the management of common bean diversity in situ. To the purpose, four historical bean varieties and one modern control were multiplied on two organic farms for three growing seasons. The fifteen resulting populations, the initial ones and two populations of each variety obtained after the three years of multiplication, were then grown in a common garden. Twenty-two Simple Sequence Repeat (SSR) markers and 13 phenotypic traits were assessed. In total, 68.2% of tested markers were polymorphic and a total of 66 different alleles were identified. FST analysis showed that the genetic composition of two varieties multiplied in different environments changed. At the phenotypic level, differences were observed in flowering date and leaf length. Results indicate that three years of multiplication suffice for local adaptation to occur. The spatial dynamics of genetic and phenotypic bean diversity imply that the maintenance of diversity should be considered at the scale of the network, rather than individual farms and gardens. The microevolution of bean populations within networks of gardens and farms emerges as a research perspective. View Full-Text
Keywords: common bean; local adaptation; genetic diversity; microevolution; Simple Sequence Repeat (SSR) markers; crop diversity; organic farming common bean; local adaptation; genetic diversity; microevolution; Simple Sequence Repeat (SSR) markers; crop diversity; organic farming
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Klaedtke, S.M.; Caproni, L.; Klauck, J.; de la Grandville, P.; Dutartre, M.; Stassart, P.M.; Chable, V.; Negri, V.; Raggi, L. Short-Term Local Adaptation of Historical Common Bean (Phaseolus vulgaris L.) Varieties and Implications for In Situ Management of Bean Diversity. Int. J. Mol. Sci. 2017, 18, 493.

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