A Phaseolus vulgaris Diversity Panel for Andean Bean Improvement

• DOI: 10.2135/cropsci2014.09.0653
• Publication Date: 2015-07-10T15:38:39Z
• Authors: Karen A. Cichy; Timothy G. Porch; James S. Beaver; Perry Cregan; Deidre Fourie; Raymond P. Glahn; Michael A. Grusak; Kelvin Kamfwa; Dennis N. Katuuramu; Phil McClean; Eninka Mndolwa; Susan Nchimbi‐Msolla; Marcial A. Pastor...; Phillip N. Miklas
• Keywords: Germ plasm; Gene pool

ABSTRACT Dry beans ( Phaseolus vulgaris L.) of the Andean gene pool, including red mottled, kidney, cranberry, and yellow seed types are important in Africa Americas. dry bean breeding gains have lagged behind those Mesoamerican beans. This difference may result from a narrower genetic base pool reduced efforts. The objective this research was to establish, genotype, phenotype panel germplasm be used for breeding. An diversity (ADP) assembled, consisting 396 accessions cultivars, lines, landraces that originate mostly Africa, Caribbean, North South America. genotyped using Illumina BARCBean6K_3 SNP BeadChip. population contained two subgroups: germplasm. ADP comprised 349 Andean, 21 Mesoamerican, 26 Andean–Mesoamerican admixed accessions. Most lines came (12 accessions) Caribbean (five accessions). Association mapping conducted determinacy. Significant single‐nucleotide polymorphism (SNP) trait associations were found on chromosome Pv01, with most significant marker being 3.1 kb Terminal Flower 1 PvTFL1y gene. evaluated numerous traits field trials United States Africa. Variability resistance rust, angular leaf spot common bacterial blight diseases; tolerance low soil fertility; cooking time; other can improve