Genetic map of the common bean using a breeding population derived from the Mesoamerican gene pool

• Main Authors: Luciana Gomes Ferreira, Gláucia Salle Cortopassi Buso, Rosana Pereira Vianello Brondani, Cláudio Brondani, Leonardo Cunha Melo, Maria José Del Peloso, Priscila Zaczuk Bassinello, Sergio Tadeu Sibov, Monalisa Sampaio Carneiro
• Format: Article
• Language: English
• Published: Brazilian Society of Plant Breeding 2010-01-01
• Series: Crop Breeding and Applied Biotechnology
• Subjects: microsatellites; RAPD; breeding program; Mesoamerican gene pools; Phaseolus vulgaris L.
• Online Access: http://www.sbmp.org.br/cbab/siscbab/uploads/c8eb9793-f803-81b9.pdf

The mapping population consisted of 94 F2 generation plants derived from a cross between the CNFC 7812and CNFC 8056 lines, with different protein contents, 24% and 19% respectively. Seven hundred and fifty-two molecularmarkers were tested among the parents and four individuals from the segregant population. A total of 101 loci were used todevelop the genetic map. The polymorphism rate was 8.3% and 23.2% for the microsatellite and RAPD markers, respectively.The sizes of the linkage groups ranged from 6.7 to 139.0 cM , presenting a mean of 49.4 ± 36.8. The map length was 840.7cM and the mean group length was 45.9 cM. The average distance between the framework loci was 16.1 cM. This map wascompared with international reference bean maps and results were discussed. The construction of the genetic map fromparents of the same center of origin and the commercial grain type were discussed.