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Balážová Ž, Čišecká L, Gálová Z, Hromadová Z, Chňapek M, Pipan B, Meglič V. Characterization of Genetic Variability of Common and Tartary Buckwheat Genotypes Using Microsatellite Markers. PLANTS (BASEL, SWITZERLAND) 2024; 13:2147. [PMID: 39124265 DOI: 10.3390/plants13152147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024]
Abstract
Buckwheat is a highly nutritional pseudocereal with antioxidant potential. The aim of this study was to analyze the genetic variability of 21 varieties of common buckwheat (Fagopyrum esculentum Moench.) and 14 varieties of Tartary buckwheat (Fagopyrum tataricum Gaertn.) using microsatellite markers. By analyzing 21 SSR markers, an average of 11.6 alleles per locus were amplified and an average PIC value of 0.711 was determined. We determined the heterozygous status of the individuals and variability in the set using the SSR analysis on the basis of expected heterozygosity (He, 0.477), observed heterozygosity (Ho, 0.675), Shannon's index (I, 0.820), and fixation indices (FST, FIS, FIT). Based on the SSR analyses, the lower level of expected heterozygosity in the analyzed set of Tartary buckwheat genotypes was observed compared to common buckwheat. With the help of a hierarchical cluster analysis using the UPGMA algorithm, Structure analysis, and PCoA analysis for the SSR markers, we divided the buckwheat varieties in the dendrogram into two main clusters according to the species. The AMOVA analysis showed that genetic variability between the individuals prevails in the analyzed set. The SSR technique proved to be a suitable tool for the determination of intra- and inter-varietal genetic variability and for analysis of diversity.
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Affiliation(s)
- Želmíra Balážová
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Lucia Čišecká
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Zdenka Gálová
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Zuzana Hromadová
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Milan Chňapek
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Barbara Pipan
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva Ulica 17, SI-1000 Ljubljana, Slovenia
| | - Vladimir Meglič
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva Ulica 17, SI-1000 Ljubljana, Slovenia
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Plestenjak E, Meglič V, Sinkovič L, Pipan B. Factors Influencing the Emergence of Heterogeneous Populations of Common Bean ( Phaseolus vulgaris L.) and Their Potential for Intercropping. PLANTS (BASEL, SWITZERLAND) 2024; 13:1112. [PMID: 38674521 PMCID: PMC11055032 DOI: 10.3390/plants13081112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024]
Abstract
The common bean is an important legume valued for its protein-rich seeds and its ability to fix nitrogen, making it a key element of crop rotation. In conventional agriculture, the emphasis is on uniformity and genetic purity to optimize crop performance and maximize yields. This is due to both the legal obligations to register varieties and the challenges of implementing breeding programs to create genetically diverse varieties. This paper focuses on the factors that influence the occurrence of heterogeneous common bean populations. The main factors contributing to this diversity have been described, including local adaptations, variable weather conditions, different pollinator species, and intricate interactions between genes controlling seed coat colour. We also discuss the benefits of intercropping common beans for organic farming systems, highlighting the improvement in resistance to diseases, and adverse environmental conditions. This paper contributes to a better understanding of common bean seed heterogeneity and the legal obligation to use heterogeneous populations.
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Affiliation(s)
- Eva Plestenjak
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetova Ulica 17, 1000 Ljubljana, Slovenia; (V.M.); (L.S.); (B.P.)
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1001 Ljubljana, Slovenia
| | - Vladimir Meglič
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetova Ulica 17, 1000 Ljubljana, Slovenia; (V.M.); (L.S.); (B.P.)
| | - Lovro Sinkovič
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetova Ulica 17, 1000 Ljubljana, Slovenia; (V.M.); (L.S.); (B.P.)
| | - Barbara Pipan
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetova Ulica 17, 1000 Ljubljana, Slovenia; (V.M.); (L.S.); (B.P.)
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Pipan B, Sinkovič L, Neji M, Janovská D, Zhou M, Meglič V. Agro-Morphological and Molecular Characterization Reveal Deep Insights in Promising Genetic Diversity and Marker-Trait Associations in Fagopyrum esculentum and Fagopyrum tataricum. PLANTS (BASEL, SWITZERLAND) 2023; 12:3321. [PMID: 37765484 PMCID: PMC10534386 DOI: 10.3390/plants12183321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/08/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Characterisation of genetic diversity is critical to adequately exploit the potential of germplasm collections and identify important traits for breeding programs and sustainable crop improvement. Here, we characterised the phenotypic and genetic diversity of a global collection of the two cultivated buckwheat species Fagopyrum esculentum and Fagopyrum tataricum (190 and 51 accessions, respectively) using 37 agro-morphological traits and 24 SSR markers. A wide range of variation was observed in both species for most of the traits analysed. The two species differed significantly in most traits, with traits related to seeds and flowering contributing most to differentiation. The accessions of each species were divided into three major phenoclusters with no clear geographic clustering. At the molecular level, the polymorphic SSR markers were highly informative, with an average polymorphic information content (PIC) of over 0.65 in both species. Genetic diversity, as determined by Nei's expected heterozygosity (He), was high (He = 0.77 and He = 0.66, respectively) and differed significantly between species (p = 0.03) but was homogeneously distributed between regions, confirming the lack of genetic structure as determined by clustering approaches. The weak genetic structure revealed by the phenotypic and SSR data and the low fixation indices in both species suggested frequent seed exchange and extensive cultivation and selection. In addition, 93 and 140 significant (p < 0.05) marker-trait associations (MTAs) were identified in both species using a general linear model and a mixed linear model, most of which explained >20% of the phenotypic variation in associated traits. Core collections of 23 and 13 phenotypically and genetically diverse accessions, respectively, were developed for F. esculentum and F. tataricum. Overall, the data analysed provided deep insights into the agro-morphological and genetic diversity and genetic relationships among F. esculentum and F. tataricum accessions and pointed to future directions for genomics-based breeding programs and germplasm management.
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Affiliation(s)
- Barbara Pipan
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva ulica 17, SI-1000 Ljubljana, Slovenia; (L.S.); (M.N.); (V.M.)
| | - Lovro Sinkovič
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva ulica 17, SI-1000 Ljubljana, Slovenia; (L.S.); (M.N.); (V.M.)
| | - Mohamed Neji
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva ulica 17, SI-1000 Ljubljana, Slovenia; (L.S.); (M.N.); (V.M.)
| | - Dagmar Janovská
- Gene Bank, Crop Research Institute, Drnovská 507, 161 06 Prague, Czech Republic;
| | - Meiliang Zhou
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Room 420, National Crop Genebank Building, Zhongguancun South Street No. 12, Haidian District, Beijing 100081, China;
| | - Vladimir Meglič
- Crop Science Department, Agricultural Institute of Slovenia, Hacquetocva ulica 17, SI-1000 Ljubljana, Slovenia; (L.S.); (M.N.); (V.M.)
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Hromadová Z, Gálová Z, Mikolášová L, Balážová Ž, Vivodík M, Chňapek M. Efficiency of RAPD and SCoT Markers in the Genetic Diversity Assessment of the Common Bean. PLANTS (BASEL, SWITZERLAND) 2023; 12:2763. [PMID: 37570917 PMCID: PMC10420954 DOI: 10.3390/plants12152763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023]
Abstract
Knowledge about the genetic diversity of the available common bean germplasm can help breeders properly direct the choice of genetic material in the breeding process. The aim of the present work was to estimate the usefulness of 10 RAPD and 10 SCoT markers in genetic diversity detection among 33 common bean genotypes. Both molecular marker systems were able to generate high levels of polymorphism in the genetic material, which was supported by the relatively high polymorphic information content (PIC) values observed for the used markers. The Diversity Detection Index (DDI) and Marker Index (MI) were used to compare the effectiveness of RAPD and SCoT markers. For both techniques, high values of MI and DDI were calculated, representing their effectivity. The SCoT markers showed higher values of the parameters used (MI = 7.474, DI = 2.265) than the RAPD markers (MI = 5.323, DDI = 1.612), indicating their higher efficiency in the detection of molecular variability. Three constructed dendrograms and PCoA plots were created using RAPD and SCoT, and both methods combined confirmed sufficient separation of the bean genotypes from each other. At the same time, a higher efficiency of SCoT markers compared to RAPD markers in the detection of the genetic diversity of beans was also proven. The results may be of future interest in the choice of genetically distant material for breeding purposes.
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Affiliation(s)
| | | | | | | | | | - Milan Chňapek
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (Z.H.); (Z.G.); (L.M.); (Ž.B.); (M.V.)
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Özkan G, Haliloğlu K, Türkoğlu A, Özturk HI, Elkoca E, Poczai P. Determining Genetic Diversity and Population Structure of Common Bean ( Phaseolus vulgaris L.) Landraces from Türkiye Using SSR Markers. Genes (Basel) 2022; 13:1410. [PMID: 36011321 PMCID: PMC9407889 DOI: 10.3390/genes13081410] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
Assessment of genetic diversity among different varieties helps to improve desired characteristics of crops, including disease resistance, early maturity, high yield, and resistance to drought. Molecular markers are one of the most effective tools for discovering genetic diversity that can increase reproductive efficiency. Simple sequence repeats (SSRs), which are codominant markers, are preferred for the determination of genetic diversity because they are highly polymorphic, multi-allelic, highly reproducible, and have good genome coverage. This study aimed to determine the genetic diversity of 40 common bean (Phaseolus vulgaris L.) landraces collected from the Ispir district located in the Northeast Anatolia region of Türkiye and five commercial varieties using SSR markers. The Twenty-seven SSR markers produced a total of 142 polymorphic bands, ranging from 2 (GATS91 and PVTT001) to 12 (BM153) alleles per marker, with an average number of 5.26 alleles. The gene diversity per marker varied between 0.37 and 0.87 for BM053 and BM153 markers, respectively. When heterozygous individuals are calculated proportional to the population, the heterozygosity ranged from 0.00 to 1.00, with an average of 0.30. The expected heterozygosity of the SSR locus ranged from 0.37 (BM053) to 0.88 (BM153), with an average of 0.69. Nei's gene diversity scored an average of 0.69. The polymorphic information content (PIC) values of SSR markers varied from 0.33 (BM053) to 0.86 (BM153), with an average of 0.63 per locus. The greatest genetic distance (0.83) was between lines 49, 50, 53, and cultivar Karacaşehir-90, while the shortest (0.08) was between lines 6 and 26. In cluster analysis using Nei's genetic distance, 45 common bean genotypes were divided into three groups and very little relationship was found between the genotypes and the geographical distances. In genetic structure analysis, three subgroups were formed, including local landraces and commercial varieties. The result confirmed that the rich diversity existing in Ispir bean landraces could be used as a genetic resource in designing breeding programs and may also contribute to Türkiye bean breeding programs.
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Affiliation(s)
- Güller Özkan
- Department of Biology, Faculty of Science, Ankara University, Ankara 06100, Türkiye
| | - Kamil Haliloğlu
- Department of Field Crops, Faculty of Agriculture, Ataturk University, Erzurum 25240, Türkiye
- Department of Biology, Faculty of Science, Cankiri Karatekin University, Çankırı 18200, Türkiye
| | - Aras Türkoğlu
- Department of Field Crops, Faculty of Agriculture, Necmettin Erbakan University, Konya 42310, Türkiye
| | - Halil Ibrahim Özturk
- Health Services Vocational School, Binali Yıldırım University, Erzincan 24100, Türkiye
| | - Erdal Elkoca
- Vocational High School, Department of Plant and Animal Production, İbrahim Çeçen University, Ağrı 04100, Türkiye
| | - Peter Poczai
- Botany Unit, Finnish Museum of Natural History, University of Helsinki, FI-00014 Helsinki, Finland
- Institute of Advanced Studies Kőszeg (iASK), H-9731 Kőszeg, Hungary
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Suárez JC, Urban MO, Contreras AT, Grajales MÁ, Cajiao C, Beebe SE, Rao IM. Adaptation of Interspecific Mesoamerican Common Bean Lines to Acid Soils and High Temperature in the Amazon Region of Colombia. PLANTS (BASEL, SWITZERLAND) 2021; 10:2412. [PMID: 34834775 PMCID: PMC8623317 DOI: 10.3390/plants10112412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Knowledge of the physiological basis for improved genetic adaptation of common bean (Phaseolus vulgaris L.) lines to acid soils and high temperature conditions in the Amazon region of Colombia is limited. In this study, we evaluated the differences among 41 common bean lines in energy use, leaf cooling, photosynthate partitioning to pod formation and grain filling, and grain yield over two seasons under acid soil and high temperature stress in the Amazon region of Colombia. Common bean lines evaluated included medium and large seeded interspecific lines of Mesoamerican and Andean gene pools with different levels of adaptation to abiotic stress conditions and some lines are improved for iron and zinc (biofortified) concentration in seeds. We found three bean lines (GGR 147, SMG 21 and SMG 12) that were superior in their photosynthetic response, leaf cooling, photosynthate partitioning ability to pod formation and grain filling, resulting in grain yields exceeding 1900 kg ha-1 under acid soil and high temperature stress conditions. The superior photosynthetic performance was attributed to the efficient use of absorbed energy on the electron level in thylakoids, which is mainly oriented to a higher quantum yield of PSII (ΦII), lower energy dissipation in the form of heat (ΦNPQ), high linear electron flow (LEF) and high fraction of PSI centers in open state (PSIopen). We speculate that these photosynthetic and photosynthate partitioning responses of superior bean lines are part of the genetic adaptation to acidic soils and high temperature stress conditions. Among the evaluated bean lines, three lines (GGR 147, SMG 21 and SMG 12) combined the desirable attributes for genetic improvement of stress tolerance and biofortification. These lines can serve as parents to further improve traits (energy use efficiency and multiple stress resistance) that are important for bean production in the Amazon region.
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Affiliation(s)
- Juan Carlos Suárez
- Programa de Ingeniería Agroecológica, Facultad de Ingeniería, Universidad de la Amazonia, Florencia 180002, Colombia;
- Programa de Maestría en Sistemas Sostenibles de Producción, Facultad de Ingeniería, Universidad de la Amazonia, Florencia 180002, Colombia
- Centro de Investigaciones Amazónicas CIMAZ Macagual César Augusto Estrada González, Grupo de Investi-gaciones Agroecosistemas y Conservación en Bosques Amazónicos-GAIA, Florencia 180002, Colombia
| | - Milan O. Urban
- International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Cali 763537, Colombia; (M.O.U.); (M.Á.G.); (C.C.); (S.E.B.); (I.M.R.)
| | - Amara Tatiana Contreras
- Programa de Ingeniería Agroecológica, Facultad de Ingeniería, Universidad de la Amazonia, Florencia 180002, Colombia;
- Programa de Maestría en Sistemas Sostenibles de Producción, Facultad de Ingeniería, Universidad de la Amazonia, Florencia 180002, Colombia
| | - Miguel Ángel Grajales
- International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Cali 763537, Colombia; (M.O.U.); (M.Á.G.); (C.C.); (S.E.B.); (I.M.R.)
| | - Cesar Cajiao
- International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Cali 763537, Colombia; (M.O.U.); (M.Á.G.); (C.C.); (S.E.B.); (I.M.R.)
| | - Stephen E. Beebe
- International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Cali 763537, Colombia; (M.O.U.); (M.Á.G.); (C.C.); (S.E.B.); (I.M.R.)
| | - Idupulapati M. Rao
- International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Cali 763537, Colombia; (M.O.U.); (M.Á.G.); (C.C.); (S.E.B.); (I.M.R.)
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Delfini J, Moda-Cirino V, dos Santos Neto J, Ruas PM, Sant’Ana GC, Gepts P, Gonçalves LSA. Population structure, genetic diversity and genomic selection signatures among a Brazilian common bean germplasm. Sci Rep 2021; 11:2964. [PMID: 33536468 PMCID: PMC7859210 DOI: 10.1038/s41598-021-82437-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/07/2021] [Indexed: 01/30/2023] Open
Abstract
Brazil is the world's largest producer of common bean. Knowledge of the genetic diversity and relatedness of accessions adapted to Brazilian conditions is of great importance for the conservation of germplasm and for directing breeding programs aimed at the development of new cultivars. In this context, the objective of this study was to analyze the genetic diversity, population structure, and linkage disequilibrium (LD) of a diversity panel consisting of 219 common bean accessions, most of which belonging to the Mesoamerican gene pool. Genotyping by sequencing (GBS) of these accessions allowed the identification of 49,817 SNPs with minor allele frequency > 0.05. Of these, 17,149 and 12,876 were exclusive to the Mesoamerican and Andean pools, respectively, and 11,805 SNPs could differentiate the two gene pools. Further the separation according to the gene pool, bayesian analysis of the population structure showed a subdivision of the Mesoamerican accessions based on the origin and color of the seed tegument. LD analysis revealed the occurrence of long linkage blocks and low LD decay with physical distance between SNPs (LD half decay in 249 kb, corrected for population structure and relatedness). The GBS technique could effectively characterize the Brazilian common bean germplasms, and the diversity panel used in this study may be of great use in future genome-wide association studies.
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Affiliation(s)
- Jessica Delfini
- grid.411400.00000 0001 2193 3537Agronomy Department, Universidade Estadual de Londrina (UEL), Londrina, 86051-900 Brazil ,Plant Breeding, Instituto de Desenvolvimento Rural do Paraná-Iapar-Emater (IDR-Paraná), Londrina, 86047-902 Brazil
| | - Vânia Moda-Cirino
- Plant Breeding, Instituto de Desenvolvimento Rural do Paraná-Iapar-Emater (IDR-Paraná), Londrina, 86047-902 Brazil
| | - José dos Santos Neto
- grid.411400.00000 0001 2193 3537Agronomy Department, Universidade Estadual de Londrina (UEL), Londrina, 86051-900 Brazil ,Plant Breeding, Instituto de Desenvolvimento Rural do Paraná-Iapar-Emater (IDR-Paraná), Londrina, 86047-902 Brazil
| | - Paulo Maurício Ruas
- grid.411400.00000 0001 2193 3537Biology Department, Universidade Estadual de Londrina (UEL), Londrina, 86051-900 Brazil
| | | | - Paul Gepts
- grid.27860.3b0000 0004 1936 9684Section of Crop and Ecosystem Sciences, Department of Plant Sciences, University of California, Davis, 95616-8780 USA
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Fiore MC, Raimondo FM, Mercati F, Digangi I, Sunseri F, Scialabba A. Preserving Biodiversity in Marginal Rural Areas: Assessment of Morphological and Genetic Variability of a Sicilian Common Bean Germplasm Collection. PLANTS (BASEL, SWITZERLAND) 2020; 9:E989. [PMID: 32759817 PMCID: PMC7463873 DOI: 10.3390/plants9080989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 11/17/2022]
Abstract
The historical cultivation of common bean (Phaseolus vulgaris L.) has resulted in the development of local populations/cultivars in restricted Italian rural areas. Many common bean landraces, still cultivated in small mountain areas from Sicily, have become outdated and endangered due to the commercial varieties spreading. These accessions are poorly known but often represent a genetic heritage to be preserved and enhanced. The ex situ conservation of fifty-seven Sicilian common bean landraces was carried out at the "Living Plants Germplasm Bank" at Ucria (Messina, Italy), founded by the Nebrodi Regional Park, together with the "Sicilian Plant Germplasm Repository" of University of Palermo (SPGR/PA). To assess the germplasm genetic diversity, nineteen morphological traits and eight Simple Sequence Repeats (SSRs) were used. Genetic distances among landraces were calculated to construct a clustering tree by using unweighted pair group method arithmetic (UPGMA). Seed germplasm diversity of Sicilian common bean varied from 80.7% to 93.3%, based on six seed descriptors and six leaf, flower, and pod descriptors, respectively, while cluster genetic analysis depicted a clear separation among all the 57 landraces. Principal coordinates (PCoA) and STRUCTURE analyses showed a prevalent rate of admixture between Mesoamerican and Andean gene pools in Sicilian common bean collection, confirming its heterogeneity. The observed high level of diversity evidenced the needs to adopt accurate criterion to plan a definitive ex situ germplasm collection to share agrobiodiversity with local farmers and to avoid any further loss of genetic resources in rural and protected areas.
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Affiliation(s)
- Maria Carola Fiore
- Council for Agricultural Research and Economics Research Centre for Plant Protection and Certification (S.S. 113 km 245,500), 90011 Bagheria, Italy
| | | | - Francesco Mercati
- Institute of Biosciences and Bioresources (IBBR), National Research Council, Corso Calatafimi 414, 90129 Palermo, Italy;
| | - Ignazio Digangi
- Living Plants Germplasm Bank of Nebrodi, Contrada Pirato, 98060 Ucria (ME), Italy;
| | - Francesco Sunseri
- Department of Agraria, University Mediterranea of Reggio Calabria, Località Feo di Vito snc, 89124 Reggio Calabria, Italy;
| | - Anna Scialabba
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), University of Palermo, Via Archirafi 38, 90123 Palermo, Italy;
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Lei L, Wang L, Wang S, Wu J. Marker-Trait Association Analysis of Seed Traits in Accessions of Common Bean ( Phaseolus vulgaris L.) in China. Front Genet 2020; 11:698. [PMID: 32714377 PMCID: PMC7344293 DOI: 10.3389/fgene.2020.00698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 06/08/2020] [Indexed: 01/22/2023] Open
Abstract
Seed weight and seed size are the key agronomic traits that determine yield in common bean. To investigate the genetic architecture of four seed traits (100-seed weight, seed length, seed width, and seed height) of common bean in China, marker-trait association analysis of these seed traits was performed in a nationwide population of 395 common bean accessions using 116 polymorphic SSR markers. The four seed traits were evaluated in six trials across three environments. Seed size varied among the environments. Population structure was evaluated based on SSR markers and phaseolin, which divided the accessions into two main subpopulations representing the two known gene pools. Seed weight and seed size had a strong relationship with population clustering. In addition, in a Genome-wide association studies (GWAS), 21 significantly associated markers were identified for the four seed traits with two models, namely, general linear model (GLM) and mixed linear model (MLM). Some markers had pleiotropic effects, i.e., controlled more than one trait. The significant quantitative trait loci identified in this study could be used in marker-assisted breeding to accelerate the genetic improvement of yield in common bean.
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Affiliation(s)
- Lei Lei
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lanfen Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shumin Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Wu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- CAAS-CIAT Joint Laboratory in Advanced Technologies for Sustainable Agriculture, Beijing, China
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