Diversity of Common Bean Landraces Collected in the Western and Eastern Carpatien

Abstract

Abstract:The study of diversity in common bean was based on morphological and agronomical characteristics, differentiation of collected accessions by morphological and molecular markers, detection of genetic variation, and duplicates detection in bean landraces. The analysed 82 accessions of common bean (Phaseolus vulgaris L.) were collected in the Western and Eastern Carpatien as landrace mixtures. Their seeds were segregated and pooled according to their characteristics; they were further multiplicated, and introduced into the collection. An extensive variation in plant and seed traits was discovered in thirty-three morphological and agronomical characteristics. Nevertheless, some of the accessions were identical in these characteristics. Cluster analysis grouped genotypes into two main branches, reflecting the growth type, seed size parameters, and thousand-seed weight. Molecular differentiation studies were performed by multilocus polymorphism detection in microsatellite and minisatellite DNA regions. Cluster analysis based on molecular data also grouped genotypes but no linkage to morphological traits was revealed. Bean accessions with very similar or identical morphological characters were clearly distinguished by DNA banding patterns. The presence of duplicates was excluded.

Genetic Diversity Analysis of Common Bean (Phaseolus Vulgaris L.) Collected From North West Himalaya for Agro-Morphological Traits

“…On the basis traits like days to bud initiation, days to 50% flowering, days to fruiting, pod length, pod width, seeds/plant, pods/ plant, 100 seed weight, seed yield per plant. These results were concordance with studies of Salgotra et al, (2002Salgotra et al, ( , 2012, Bralewski et al, (2007), Horňáková et al, (2003), Stoilova et al, (2005, Das, (2005), Casquero et al, (2006), Boros et al, (2014). The mean± SE, range, coefficient of variation, heritability, genetic advance and genetic advance as percentage of mean of yield and yield attributing traits were given in Table 3.…”

Genetic variation among biofortified and late blight tolerant potato (Solanum tuberosum L.) (mini tuber) production in Bangladesh

“…The researcher and their associates (8), reported that PCA reduced the original five sensory attributes into two independent components, which accounted for 66% of the total variability in the data. The knowledge of genetic diversity helps to avoid duplicates in the collection provides a better classification and assist in breeding selection (9). The PCA has been used to partition observed agronomic variations in genotypes of many crops such as sweet potato landraces (7), rubber, rice, sesame and durum wheat (10)(11)(12)(13).…”

Review on effect of N and P fertilizer rates on yield and yield components of common bean [Phaseolus vulgaris (L.)] varieties

“…It is a family of great economic importance and very unique in having members that can form associations with symbiotic bacteria to fix atmospheric nitrogen (Karagkiozi, P., et al, 2012) [32] . Common bean originated from the New World; two centers of origin were identified Andean and Mesoamerican (Hornakova, O., et al, 2003;Logozzo, G., et al, 2007) [30,36] . The domestication occurred independently in South America and Central America/Mexico, leading to two different domesticated gene pools, the Andean and Mesoamerican, respectively (Papa, R. and Gepts, P., 2003; Petry, N., et al, 2015) [44,45] .…”