Grain Legumes

doi:10.1007/978-1-4939-2797-5

Cited by 69 publications

(15 citation statements)

References 869 publications

(1,292 reference statements)

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“…When data was graphically represented using principal component analysis (Figure 3), it was clear that higher values of seed width and seed height were found in seeds from the B2P2 group; more elongated seeds belonged to the B1P3 groups, and seeds flatter and with a higher number of locules per pod were predominant in the AP1 group. This evidence is in accordance with previous studies that characterized seeds from the Andean gene pool as larger-sized and accessions from Mesoamerica as higher-yielding but with smaller seeds (Singh et al, 1991, 1993; Kelly et al, 1998; De Ron, 2015). Moreover, the plant growth habit of more than 61% of the Portuguese accessions was determinate, which is mostly typical of the Nueva Granada Andean race (Singh et al, 1991).…”

Section: Discussionsupporting

confidence: 93%

Establishing the Bases for Introducing the Unexplored Portuguese Common Bean Germplasm into the Breeding World

et al. 2017

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Common bean (Phaseolus vulgaris L.) is among the most important grain legumes for human consumption worldwide. Portugal has a potentially promising common bean germplasm, resulting from more than five centuries of natural adaptation and farmers' selection. Nevertheless, limited characterization of this resource hampers its exploitation by breeding programs. To support a more efficient conservation of the national bean germplasm and promote its use in crop improvement, we performed, for the first time, a simultaneous molecular marker (21 microsatellites and a DNA marker for phaseolin-type diversity analysis) and seed and plant morphological characterization (14 traits) of 175 accessions from Portuguese mainland and islands traditional bean-growing regions. A total of 188 different alleles were identified and an average pairwise Cavalli-Sforza and Edwards' chord genetic distance of 0.193 was estimated among accessions. To relate the Portuguese germplasm with the global common bean diversity, 17 wild relatives and representative accessions from the Andean and Mesoamerican gene pools were evaluated at the molecular level. No correlation was detected between the variability found and the geographic origin of accessions. Structure analysis divided the collection into three main clusters. Most of the Portuguese accessions grouped with the race representatives and wild relatives from the Andean region. One third of the national germplasm had admixed genetic origin and might represent putative hybrids among gene pools from the two original centers of domestication in the Andes and Mesoamerica. The molecular marker-based classification was largely congruent with the three most frequent phaseolin haplotype patterns observed in the accessions analyzed. Seed and plant morphological characterization of 150 Portuguese common bean accessions revealed a clear separation among genetic structure and phaseolin haplotype groups of accessions, with seed size and shape and the number of locules per pod the most discriminant traits. Additionally, we used molecular and morphological data to develop a series of smaller core collections that, by maximizing the genetic and morphological diversity of the original collection, represents the Portuguese common bean germplasm with minimum repetitiveness. A core collection with 37 accessions contained 100% of the genetic variation found in the entire collection. This core collection is appropriate for a more detailed characterization and should be explored, as a priority, in national and international common bean breeding efforts. Furthermore, the identified intermediate accessions (with admixed genetic origin) may have novel genetic combinations useful in future bean breeding.

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Section: Discussionsupporting

confidence: 93%

Establishing the Bases for Introducing the Unexplored Portuguese Common Bean Germplasm into the Breeding World

et al. 2017

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“…Conservation of these species is a priority because of their importance in breeding programs (Andueza‐Noh et al., 2016; De Ron et al., 2015; Debouck, 2000; Rodriguez et al., 2015; Shi & Lai, 2015; Singh, Singh, & Dutta, 2014). In addition, further work is needed to reinforce knowledge regarding population genetics and the response to ecological or climate changes and to evaluate survival rates (Delgado‐Salinas & Gama‐López, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Modern tools such as genomics can provide information for the use and management of genetic resources to compensate for the limited variation associated with crop domestication. Therefore, breeders can overcome interspecific barriers to exploit gene traits from wild germplasm throughout a particular genus (Abberton et al., 2015; Brozynska et al., 2016; De Ron et al., 2015; Estrada, Guillén, Olivares, Díaz, & Alvarado, 2007; Kole et al., 2015; Rendón‐Anaya et al., 2017). …”

Section: Discussionmentioning

confidence: 99%

Climatic adaptation and ecological descriptors of wild beans from Mexico

Cerda-Hurtado

Máyek-Pérez

Muruaga‐Martínez

et al. 2018

Ecology and Evolution

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Despite its economic, social, biological, and cultural importance, wild forms of the genus Phaseolus are not well represented in germplasm banks, and they are at great risk due to changes in land use as well as climate change. To improve our understanding of the potential geographical distribution of wild beans (Phaseolus spp.) from Mexico and support in situ and ex situ conservation programs, we determined the climatic adaptation ranges of 29 species and two subspecies of Phaseolus collected throughout Mexico. Based on five biotic and 117 abiotic variables obtained from different databases—WorldClim, Global‐Aridity, and Global‐PET—we performed principal component and cluster analyses. Germplasm was distributed among 12 climatic types from a possible 28. The general climatic ranges were as follows: 8–3,083 m above sea level; 12.07–26.96°C annual mean temperature; 10.33–202.68 mm annual precipitation; 9.33–16.56 W/m2 of net radiation; 11.68–14.23 hr photoperiod; 0.06–1.57 aridity index; and 10–1,728 mm/month of annual potential evapotranspiration. Most descriptive variables (25) clustered species into two groups: One included germplasm from semihot climates, and the other included germplasm from temperate climates. Species clustering showed 45% to 54% coincidence with species previously grouped using molecular data. The species P. filiformis, P. purpusii, and P. maculatus were found at low‐humidity locations; these species could be used to improve our understanding of the extreme aridity adaptation mechanisms used by wild beans to avoid or tolerate climate change as well as to introgress favorable alleles into new cultivars adapted to hot, dry environments.

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“…Leaf samples were monitored for the Bean Common Mosaic Virus (BCMV) and the Bean Common Necrotic Mosaic Virus (BCNMV), because they are the most prevalent seed-transmitted diseases for bean seed production (De Ron, 2015). …”

Section: Methodsmentioning

confidence: 99%

Recovery of a Common Bean Landrace (Phaseolus vulgaris L.) for Commercial Purposes

2018

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The “Caparrona” bean is a landrace that was grown largely in Monzón, and for that reason, it is also known by the name of “Caparrona de Monzón.” Historical references mention that in the thirties of the last century, Caparrona beans reached a production higher than 200,000 kg. Nevertheless, the increasing modernization of agriculture at the end of the 20th century enhanced its replacement by newer varieties. As a result, only a few local growers continued producing Caparrona beans mainly for family use. However, in recent years, the high demand for local products, grown with environmentally friendly farming techniques, has reawakened interest in this local bean. In order to recover the Caparrona bean crop, a study was conducted with the aim of assessing this landrace, along with all the processes, from collecting seeds to securing the in situ and ex situ conservation. Six bean samples were initially collected from local farmers and the traditional knowledge was also recorded. After the first seed-borne virus test, two samples were rejected because of the positive results for Bean Common Mosaic Virus (BCMV). The four remaining samples were evaluated in a randomized complete block design with three replications at two locations. All through the growth phase of the plants, samples were taken for a virus test. Two samples tested positive for BCMV and were discarded. Between the two healthy seed samples, regarding morphology, chemical composition, and agronomic data, no significant statistical differences were found. Therefore, both samples were selected for commercial production. The seeds obtained from the assays were transferred to a recently created producers’ association, which registered a private label to commercialize the Caparrona beans as a gourmet product. Seeds are also available from the Spanish BGHZ-CITA public genebank.

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Grain Legumes

Cited by 69 publications

References 869 publications

Establishing the Bases for Introducing the Unexplored Portuguese Common Bean Germplasm into the Breeding World

Establishing the Bases for Introducing the Unexplored Portuguese Common Bean Germplasm into the Breeding World

Climatic adaptation and ecological descriptors of wild beans from Mexico

Recovery of a Common Bean Landrace (Phaseolus vulgaris L.) for Commercial Purposes

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