Evaluation of genetic variability and genetic advance to. Frontiers the spanish core collection of common beans. Genetic variation, heritability estimates and gxe effects on. Evaluation of genetic variation of some agronomical and. These results lead to the conclusion that traits which had a high amount of genetic variability, estimates of broadsense heritability, genetic advance, and a high degree of positive and significant correlation coefficient under stress conditions would be very effective tools to be used in selection of high yielding common bean genotype under. Evaluation of genetic variability, heritability, genetic. Several characters can be used to characterize genetic resources, particularly morphological and agronomic singh 2001, and.
Increasing bean yield partly requires developing cultivars that are adapted to both cropping systems. Exploration of genetic variability of bean phaseolus vulgaris l. Genetic diversity and selection of common bean lines based on. Genetic variability, heritability and genetic advance of some. Pdf genetic variability within phaeoisariopsis griseola.
Results of analysis of variance showed that there was a genetic variation for traits. This is corroborated by the high h2 estimate obtained for zinc content, as for other minerals and protein table 1. Assessing variability is fundamental to identify the most important traits in haricot bean improvement program. Common bean provides 22% of the total protein requirement worldwide. In ethiopia common bean is the most important legume as the source of protein and export commodity. Heritability is the degree of genetic control associated with certain heritable important traits addissu, 2011. The seed trade practices of bean production affected genetic variability of s. Thus, this study was conducted to estimate genetic variability of faba bean genotypes on grain yield and related traits at soil of ph 4. Among major food crops, it has one of the highest levels of variation in growth habit, seed characteristics size, shape, colour, maturity, and adaptation. However, most of the genetic variability available in the common bean races, gene pools, and wild relatives remains to be utilized. Considerable genetic variation for morphological traits, allozymes, phaseolin protein, and reaction to bacterial, fungal, and viral diseases exist in the germplasm. Simple sequence repeat ssr marker system was used to analyze the genetic diversity of 38 common bean landraces grown in northern anatolia region and. Determining the genetic control of common bean early. Low genetic variability in sclerotinia sclerotiorum.
Moreover, knowledge about the genetic structure of s. Genetic transformation of common bean phaseolus vulgaris. Common bean landraces exhibit wide genetic variability for seed color, shape, shininess, size, and have demonstrated adaptability to several environmental conditions rodiflo et al. Genetic diversity of common bean phaseolus vulgaris l. A breeder can define the best selection strategy to obtain superior genotypes based on the estimates for the estimates of genetic parameters in common bean. Characterization of genetic variability among common bean genotypes by morphological descriptors is essential faleiro and junqueira 2010. Characterization of genetic variability among common bean. Genetic variation, heritability estimates and gxe effects on yield traits of mesoamerican common bean phaseolus vulgaris l germplasm in uganda volume 16 issue 3 dennis okii, clare mukankusi, sulaiman sebuliba, phinehas tukamuhabwa, geoffrey tusiime, herbert talwana, thomas odong, annet namayanja, pamela paparu, stanley nkalubo, michael otim, michael ugen, stephen buah, paul gepts. Evaluation of locally collected germplasm of common bean.
In addition to the five cultivated bean species there are over 50 species of wild beans in existence today. Moreover, we emphasize how important the conservation of such genetic resources is in smallfarming areas, the. Targeted selection of agronomic, physiological and biochemical traits. Analysis of genetic variability, heritability and genetic advance in phaseolus vulgaris l. Genetic variation for phosphorus efficiency of common bean. Genomic history of the origin and domestication of common. Common bean is a source of dietary protein and the second most important legume crop in africa next to faba bean. Genetic variation among isolates of the web blight. Genetic diversity assessments and the structure of phaseolus. I genetic diversity and selection of genotypes to enhance zn.
Evaluation of genetic variability and genetic advance to qualitative and quantitative for selection of expected lines of purple common bean phaseolus vulgaris l very andriani1, andy soegianto2, kuswanto3 1, center for plant variety protection and agricultural permits, secretariat general, ministry of agriculture. Genetic variability and interrelationships of phenological. The main purpose of this work was to analyse the morphological, phenological and agronomical variability among common bean local populations from the national centre for plant genetic resources, polish genebank, in order to know the relation among them, and to identify potentially useful accessions for future production and breeding. I genetic diversity and selection of genotypes to enhance. Borkar2 1department of botany, fergusson college, pune, 411004, india 2m. Common bean 2n 2x 22 represents 50% of the grain legumes consumed worldwide. Morphological seed characterization of common phaseolus. It is a highly polymorphic warmseason, herbaceous annual. Diversification and genetic structure of the westerntoeastern. Genetic diversity of croatian common bean landraces. There are many local bean land races types adapted to the regional conditions of swat, cultivated by the local farmers of the valley. Study on genetic variation and morphophenologic traits in common bean phaseolus vulgaris l. Genetic divergence of common bean cultivars 11285 genetics and molecular research 14 3.
Variability in yield and yield components among common bean phaseolus vulgaris l. It has a taproot with many adventitious roots ecoport, 20. Furthermore, for the biofortified common bean cultivars can be. It indicates how much of the genetic variability has a genetic origin and gives necessary information for the selection process falconer, 1981. This study aims at understanding how the current distribution of common bean was originated and how its genome has been shaped by domestication and through gene flow from its close relatives, to become the crop plant we know. To this effect, understanding the genetic variability. Nechifor, raluca filimon, lizica szilagyi university of agronomic sciences and veterinary medicine of bucharest keywords. Tepary bean is a member of the tertiary gene pool of common bean making the latter highly useful for breeding. The wild common bean grows today in the andes and guatemala. Genetic erosion refers to the loss of genetic diversity, sometimes used in a narrow sense, that is, the loss of genes or alleles, as well as more broadly, referring to the loss of varieties. Jan 01, 2010 chemical analyses revealed significant genetic variability for seed zn and fe contents among the genotypes. Note characterization of genetic variability among common. Genetic diversity analysis of common beans based on.
Hence the present study was undertaken to estimate the extent of genetic variability, heritability and genetic advance in common bean genotypes for yield and yield related traits. Nov, 2018 the iberian peninsula is considered as a secondary center of diversity for the common bean, and the spanish national plant genetic resources centres germplasm bank holds more than 3,000 spanish accessions of phaseolus vulgaris l. Thus, understanding the genetic distance between the common black bean genotypes is crucial, where contrasting parents with additional and favorable traits are sought. Germplasm of common beans from the mesoamerican gene pool races.
Genetic diversity was evaluated with 49 primer pairs, of which 23 were simple sequence repeats ssr, 16 were developed from tentative consensus tc sequences, and 10 were generated from common bean nbslrr gene sequences. Genetic potential of common bean progenies obtained by different breeding methods evaluated in various environments v. The genetic variation within and between spanish landraces or varieties of phaseolus vulgaris l. Lentil, common bean, and chickpea provide 6075% of the suggested daily intake of prebiotic carbohydrates in a 100 g serving. Characterization of genetic diversity in turkish common bean. Estimates of genetic parameters in common bean genotypes. Many crop species, including common bean, show genetic variation in growth rate between varieties.
The objective of this work was to evaluate the adjustment of the yield for the stand in common bean experiments and to propose a procedure for the adjustment through covariance analysis. College of arts, science and commerce, urikanchan, pune, india corresponding author a b s t r a c t french bean, gamma rays, accepted. In order to depict the origin and diversity of common bean landraces, it is. Characterization of genetic variability among common bean genotypes by morphological descriptors voysest 1983 and singh 1989, the grain size can vary from less than 15 to 90 g per 100 grains and be grouped into small 2540 g 100 grains 1 and large 40 g 100 grains 1. Mojtaba bagheri1, danial kahrizi1,2 and alireza zebarjadi1,2 1. Meanwhile, t he wider range of variability observed from the mean of various quantitative traits.
Higher effectiveness of new common bean phaseolus vulgaris l. Genetic variation can be divided into different forms according to the size and type of genomic variation underpinning genetic change. Alemayehu balcha dilla university, school of agricultural sciences, p. The objective of the present study was to estimate variability, heritability and genetic advance based on twelve morphological characters of haricot bean phaseolus vulgaris l. Pdf knowledge of the sources and magnitude of variability among genotypes plays a pivotal role in any crop improvement program to. Genetic variation in common bean landraces efficiently revealed by tddamdpcr markers ayse gul ince1, mehmet karaca2 1department of horticulture, faculty of agriculture, akdeniz university, 07059 antalya, turkey 2department of field crops, faculty of agriculture, akdeniz university, 07059 antalya, turkey. In this study, we investigated the genetic variability in diaporthe endophytic fungi isolates from common bean. Genetic variability of agronomic traits as potential. The first introduction of common bean from centralsouth america into western europe most likely took place around 1500. Genetic variation for grain yield and water absorption in common bean phaseolus vulgaris l.
The results of generation mean analysis with threeparameter genetic model and also scaling tests a, b, c and d revealed inadequacy of the additivedominance simple model. Among the grain legumes cultivated in ethiopia, dry beans are regarded as the most important crop for food security and wealth creation. Genetic variation found in traditional landraces and wild species is important for continued progress of crop improvement. For a given genome of a multicellular organism, genetic variation may be acquired in somatic cells or inherited through the germline. Exploiting interspecific genetic variability for improving. The landraces of common been have been showing wide genetic variability for seed color, shape, brightness, size in general large seeded cultivars are preferred, among other characteristics of cultivars used by farmers. The objective was to assign 50 common bean germplasm in uganda into its gene pool races based on analyses of population structure. Genetic variability and heritability of seedling vigour in. Genetic variability for iron and zinc content in common. Genetic diversity observed in the common bean core collection represents an important sample of the total phaseolus genetic variability at the main germplasm bank of inifap. To maximize and sustain bean production, high yielding, high quality cultivars that are less dependent on water, fertilizer, pesticides, and manual labor should be developed. Ancestral landraces of common bean from the south of europe and. This work had the objective to quantify genetic variability in landraces cultivars collected in parana bean areas producer. A field experiment was carried out at gofa in southern ethiopia, to assess genetic variability for drought resistance in fortynine small red seeded common bean genotypes of both.
Genetic variation, heritability estimates and gxe effects on yield traits of mesoamerican common bean phaseolusvulgarislgermplasminuganda dennis okii1,2, clare mukankusi1, sulaiman sebuliba1, phinehas tukamuhabwa2, geoffrey tusiime2, herbert talwana2, thomas odong2, annet namayanja3, pamela paparu3, stanley nkalubo3, michael otim3, michael ugen4, stephen buah5. Variability in prebiotic carbohydrates in different market. The attractive bean seeds and their easy transportation warranted numerous additional introductions, not only from the americas, but also from other areas where the common bean had been introduced. Meanwhile, the wider range of variability observed from the mean of various quantitative traits. Prebreeding in common bean and use of genetic diversity from wild germplasm jorge a. Genetic diversity and selection of genotypes to enhance zn. Diversity of technological and biofortification traits. Pdf genetic diversity was studied among 20 common bean phaseolus vulgaris l. Analysis of genetic variability, heritability and genetic.
Performance evaluation of common bean phaseolus vulgaris l. Azam negahi1, mohammad reza bihamta 2, zahra negahi3 and mohammad alidoust 1 1 beheshte pars university, export terminal of flower and plant, asbechinsalmanshahr, mazandaran, iran. Genetic potential of common bean progenies obtained by. In order to encourage the use of this abundant resource, this study aimed to characterize genetic.
Generation mean analysis to estimate genetic parameters. It also has a tremendous variability 40,000 varieties. Materials and methods the experimental material comprised of forty four. Pdf adjustmenty of yield for the stand variation in. Genetic variability and heritability of seedling vigour in common beans phaseolus vulgaris l. Several characters can be used to characterize genetic resources, particularly morphological and agronomic singh 2001, and biochemical and molecular traits beebe et al. Genetic variability, heritability and expected genetic. Genetic variation, heritability estimates and gxe effects. Genetic variability for iron and zinc content in common bean lines and interaction with water availability. Therefore, it is necessary to get information about the genetic variability of a population for breeding program 2. Genetic variability among common black bean phaseolus.
Agronomic performance and genetic variability among common. Genetic variability and pedigree analysis of common bean 285 scientia agricola, v. Genetic variability in the major gene pools of common bean a wide array of molecular marker types has been used to estimate the levels of genetic diversity and its structure in the primary gene pool of common bean. We will examine the source and distribution of phenotypic and genotypic variation in nature. Agronomic performance and genetic variability among common bean genotypes in savannapantanal ecotone. Data from 33 environments of the common bean assay of rio.
Variability of 45 isolates of rhizoctonia solani teleomorph thanatephorus cucumeris causing web blight wb of common bean, phaseolus vulgaris, was examined by polymerase chain reactionrestriction fragment length polymorphism pcrrflp analysis of the internal transcribed spacer regions its1 and its2 and the 5. Therefore, a common objective for phaseolus species is to explore the existence of genetic variability in landraces that could enhance genetic diversity of bean. Hence, development of commercial varieties is one of the major tasks to meet increasing demand of the stake holders. Common bean, landraces, diversity, micronutrients, genetic resources.
Pdf characterization of genetic variability among common. Pdf genetic variability of common bean phaseolus vulgaris l. Jan 24, 2020 whether common bean can be used as useful genetic resource to widen the narrow genetic base of tepary bean and improve yield and yield. An overview of four years data from 2011 to 2014 indicates that more than 337,000 ha were dedicated to production of 455,000 tons of common beans annually. Genetic diversity in caribbean accessions of common bean. Characterization of colletotrichum spp in common bean 3 genetics and molecular research 15 2. Phaseolus vulgaris, germplasm, descriptors, genetic diversity. Our motivation for this study, primarily came from the realization that this genus was one of the most abundant in the endophytic fungal community of bean gonzaga et al.
Genetic diversity of common bean from central europe was studied at the agricultural institute of slovenia by aflp and microsatellite markers 1012. Bean genotypes differ in their p efficiency, defined as growth and yield in low p soil. Genotypes motlatsi eric morojele1, refiloe phupu1 and lesole sefume2 1national university of lesotho, faculty of agriculture, department of crop science, p. Pdf genetic variation in common and runner bean of the. It is generally accepted that two major gene pools exist in cultivatedcommon bean phaseolus vulgaris l. Genetic variation for grain yield and water absorption in. Genetic variability in cultivated common bean beyond the. The objectives of this study were to evaluate genetic variation in diverse bean germplasms for p efficiency in soil types with contrasting p chemistry and to assess possible relationships between dry matter distribution, p partitioning and yield.
Molecular marker strategies could contribute to a better understanding of the genetic structure of the core collection as well as to its improvement and validation. Oct 11, 2018 three genetic groups, population a, population b, and a group of unclassified population, were identified and represented heterotic groups from which parental lines can be fetched to conduct crossing blocks in the process of common bean genetic improvement. Evaluation of genetic variation of some agronomical and morphological traits in iranian and exotic common bean phaseolus vulgaris l. Common bean landraces originated from these two gene pools were. Oct 30, 2014 association of independent markers suggest that the common bean population of s. Lentil is rich in low molecular weight carbohydrates including sa, rfo, and fos, while common bean and chickpea are rich in polysaccharides such as cellulose, hemicellulose, and amylose. Breeding tepary bean phaseolus acutifolius for drought. Study on genetic variation and morphophenologic traits in.
Since these are distinct genetic species, common bean can only be crossed with a few wild species and a few of the cultivated species. Durango, jalisco, mesoamerica and guatemala have highest genetic variation for the crops improvement. Keeping in view the importance of above biometrical approaches, an experiment was conducted to know genetic variability, heritability and genetic advance in french bean germplasm. Prebreeding in common bean and use of genetic diversity from.
Genetic variability of common bean phaseolus vulgaris. Some evidence, based on unique phaseolin morphotypesand aflp analysis, suggests that at least one more gene pool exists incultivated common bean. Despite this, the genetic basis of the earlyseason growthrelated traits has not been well resolved in the species, in part due to historic phenotyping challenges. Conventional breeding has contributed significantly to the trait improvement of p. Most of them were designed aimed at understanding the organization of diversity in the species, which is now one of the best known.
Genetic variation is currently maintained in the european. High genetic variability in endophytic fungi from the genus. Box 419, dilla, ethiopia, accepted 15 december 2010 common bean phaseolus vulgaris l. Genetic variability within phaeoisariopsis griseola from central america and its implications for resistance breeding of common bean. Genetic variation of landraces of common bean varying for. Accordingly, we built a robust evolutionary model of common bean lineage divergence and domestication. An experiment was carried out using 20 common bean genotypes in sole and maize bean intercrop during 2012 main cropping season in dilla, ethiopia, to investigate genetic variances and. Characterization of genetic variability among common bean genotypes by morphological descriptors v oysest 1983 and singh 1989, the grain size can vary from less than 15 to 90 g per 100 grains. The great genetic variability detected permit to infer that it is possible to increase by over 50% the zinc content in common bean grains. In this chapter, we outline the significance of landraces of common bean phaseolus vulgaris l. Genetic variation, heritability estimates and gxe effects on yield traits of mesoamerican common bean phaseolus vulgaris l germplasm in uganda. Genetic variation in common bean landraces efficiently.
Genomic inbreeding and kinship coefficient were computed as part of diversity metrics. Multivariate statistical analyses of morphological, agronomic, and molecular data, as well as other available information on latin american landraces representing various geographical and ecological regions of their primary centers of domestications in the americas, reveal the existence of two major. Genetic variability on grain yield and related agronomic. Morphological, phenological and agronomical characterisation. Likewise, storage protein and amino acid content in dry seeds have been estimated. They are an important genetic resource for plant breeders because of their.