Genetic Diversity of Croatian Common Bean Landraces

Abstract

In Croatia, the majority of the common bean production is based on local landraces, grown by small-scale farmers in low input production systems. Landraces are adapted to the specific growing conditions and agro-environments and show a great morphological diversity. These local landraces are in danger of genetic erosion caused by complex socio-economic changes in rural communities. The low profitability of farms and their small size, the advanced age of farmers and the replacement of traditional landraces with modern bean cultivars and/or other more profitable crops have been identified as the major factors affecting genetic erosion. Three hundred accessions belonging to most widely used landraces were evaluated by phaseolin genotyping and microsatellite marker analysis. A total of 183 different multi-locus genotypes in the panel of 300 accessions were revealed using 26 microsatellite markers. Out of 183 accessions, 27.32% were of Mesoamerican origin, 68.31% of Andean, while 4.37% of accessions represented putative hybrids between gene pools. Accessions of Andean origin were further classified into phaseolin type II (“H” or “C”) and III (“T”), the latter being more frequent. A model-based cluster analysis based on microsatellite markers revealed the presence of three clusters in congruence with the results of phaseolin type analysis.

How does Computer vision compare to standard colorimeter in assessing the seed coat color of common bean (Phaseolus vulgaris L.)?

“…In Croatia, common bean represents the main grain legume for direct human consumption (Čupić et al, 2012). The long tradition of common bean cultivation in Croatia has led to further genetic diversification of numerous landraces differing in seed size and shape but most notably in seed coat color (Vidak et al, 2015;Carović-Stanko et al, 2017). Common bean exhibits a wide variety of seed coat colors (white, pink, red, yellow, brown, black) and intermediate hues as well as spotted and striped seed coat patterns (Lešić et al, 2004).…”

Relationship between origin and nutrient content of Croatian common bean landraces

“…The data on phaseolin type for all analyzed accessions were overtaken from the research reported by Carović-Stanko et al (2017).…”

“…In many European countries, the selective pressure operated by farmers over time on the common bean genetic pool of introduced accessions led to the creation of well adapted landraces (Piergiovanni and Lioi, 2010). Carović-Stanko et al (2017) reported that common bean landraces are an important source of genetic resistance for plant breeders, as they often…”

Genetic diversity of common bean (Phaseolus vulgaris L.) breeding collection in Serbia

“…Common bean (Phaseolus vulgaris L.), due to its good nutritional value and the possibility for using as both fresh and processed food, is among the most significant legumes in the world (CAROVIĆ-STANKO et al, 2017). In the first half of the twentieth century, in former Yugoslavia common bean was usually intercropped with maize.…”