GENETIC DIVERSITY OF BRAZILIAN PEPPER BASED ON QUALITATIVE REPRODUCTIVE TRAITS

Autores

  • Gabriel Mascarenhas Maciel Universidade Federal de Uberlândia
  • Fábio Janoni Carvalho Instituto Federal do Triângulo Mineiro
  • Camila Soares de Oliveira Universidade Federal de Uberlândia
  • Aline José da Silveira Universidade Federal de Uberlândia
  • Lucas Medeiros Pereira Universidade Federal de Uberlândia
  • Igor Forigo Beloti Universidade Federal de Uberlândia

DOI:

https://doi.org/10.28998/rca.v17i3.7758

Resumo

In Brazil, pepper cultivation gives producers more marketing opportunities in various segments, either for fresh consumption or industry. Reproductive traits are efficient methods for comparing genetic divergence in pepper, once most differences among accessions could be verified at this stage. This study aimed to evaluate the genetic divergence in the reproductive phase of pepper accessions by multivariate analysis and test the efficiency of different methods. Sixty-five genotypes from the Federal University of UberlândiaCapsicum spp. Germplasm Bank were evaluated 145 days after sowing, and morphological characterization was performed at reproductive phase. Graphical representation of genetic distances was obtained by UPGMA. Tocher optimization method was also used to group accessions. Genotypes were arranged in seventeen different groups by Tocher method. UPGMA dendrogram collaborated with Tocher method, indicating the wide genetic variability of genotypes. Tocher and UPGMA methods were partially in agreement, allowing grouping 44 of the 65 analyzed accessionsequally. Multicategorical traits have the advantage of easy observation and require less time and labor, being ideal for use in gene bank and collections that do not have high human and financial resources. Moreover, these traits are not affected by the environment. Genetic divergence detected in this paper encourages other researchers to perform the characterization of pepper collections as completely as possible, because it becomes possible to generate more reliable information of the variability and genetic divergence among accessions. Our research discloses the reproductive biodiversity of pepper in “Alto Paranaíba” and “TriânguloMineiro” regions and the importance of maintaining these genotypes.

Downloads

Não há dados estatísticos.

Biografia do Autor

Igor Forigo Beloti, Universidade Federal de Uberlândia

Doutorando em Agronomia, Instituto de Ciências Agrárias, LAGEN (Laboratório de Análise de Sementes e Recursos Genéticos)

Referências

ABCSEM AssociaçãoBrasileira do Comércio de Mudas e Sementes. 2016, June 14. Pesquisa de mercado de sementes de hortaliças. Available at: http://www.abcsem.com.br/dadosdosegmento.php.

Alvares, R.C.; Reis, E.F.; Pinto, J.F.N. Genetic divergence in pepper genotypes from southwest Goiás. Ciência e Agrotecnologia, 2012, 36, 498-506. http://dx.doi.org/10.1590/S1413-70542012000500002

Baba, V.Y.; Rocha, K.R.; Gomes, G.P.; Ruas, C.F.; Ruas, P.M., Rodrigues, R.; Gonçalves, L.S.A. Genetic diversity of Capsicumchinense accessions based on fruit morphological characterization and AFLP markers. Genetic Resources and Crop Evolution, 2015, 63, 1371-138.

http://doi.org/10.1007/s10722-015-0325-4

Bento, C.S.; Sudré, C.P.; Rodrigues, R.; Riva, E.M.; Pereira, M.G. Descritoresqualitativos e multicategóricosnaestimativa da variabilidadefenotípica entre acessos de pimenta. Scientia Agraria,2007, 8, 149-156.http://dx.doi.org/10.5380/rsa.v8i2.8379

Büttow, M.V.; Barbiere, R.L.; Neitzke, R.S.; Heiden, G. Diversidadegenética entre acessos de pimentas e pimentões da EmbrapaClimaTemperado. Ciência Rural, 2010, 40, 1264-1269. http://dx.doi.org/10.1590/S0103-84782010000600004

Bianchi, P.A.; Dutra, I.P.; Moulin, I.M.M.; Santos, J.A.; Santos Júnior, A.C. Morphological characterization and analysis of genetic variability among pepper accessions. Ciência Rural, 2016, 46,1151-1157. http://doi.org/10.1590/0103-8478cr20150825

Charrad, M.; Ghazzali, N.; Boiteau, V; Nikfans, A. NbClust: An R Package for Determining the Relevant Number of Clusters in a Data Set. Journal of Statistical Software,2014,61, 1-36. http://doi.org/10.18637/jss.v061.i06.

Costa, L.V.; Bentes, J.L.S.; Lopes, M.T.G.; Alves, S.E.M.; Viana Júnior, J.M. Caracterização de acessos de pimentas do Amazonas. Horticultura Brasileira, 2015, 33, 290-298. http://doi.org/10.1590/S0102-053620150000300003

Domenico, C.I.; Coutinho, J.P.; Godoy, H.T.; Melo, A.M.T. Caracterizaçãoagronômica e pungênciaempimenta de cheiro. HorticulturaBrasileira,2012, 30, 466-472.http://doi.org/10.1590/S0102-05362012000300018

FAOSTAT - Food and Agriculture Organization of the United Nations. 2016, June 26. Available at: http://faostat.fao.org

Gower, J.C. A general coefficient of similarity and some of its properties. Biometrics,1971,27, 857-874.http://dx.doi.org/10.2307/2528823

IPGRI - INTERNATIONAL PLANT GENETIC RESOURCE INSTITUTE. Descriptor for Capsicum (Capsicum spp.). International Plant Genetic Resource Institute: Rome, Italy, 1995. 51 p.

Knezovic, Z.; Gunjaea, Z.; Satoviae, F.; Kolak, I. Comparison of Different Methods for Classification of Gene Bank Accessions. Agriculturae Conspectus Scientificus, 2005, 70, p. 87-91.

Kumar, S; Toshniwal, D. Analysis of hourly road accident counts using hierarchical clustering and cophenetic correlation coefficient (CPCC). Journal of Big Data, 2016, 3, 1-11. http://doi.org/10.1186/s40537-016-0046-3

Liaw, A; Wiener, M. Classification and Regression by random Forest. R News, 2002, 2/3, 18-22.

Maciel, G.M.; Oliveira, C.S.; Siquieroli, A.C.S.; Melo, E.I.; Oliveira, A.H.G. Genetic dissimilarity among the physiochemical characteristics of fruit from pepper accessions. Bioscience Journal, 2016, 32, 978-985. http://doi.org/10.14393/BJ-v32n4a2016-33893

Moura, M.C.C.L.; Gonçalves, L.S.A.; Sudré, C.P.; Rodrigues, R.; Amaral Júnior, A.A.; Pereira, T.N.S. Algoritmo de Gower naestimativa da divergência genética em germoplasma de pimenta. Horticultura Brasileira, 2010, 28, 155-161.http://dx.doi.org/10.1590/S0102-05362010000200003

Paulus, D.; Valmorbida, R.; Santin, A.; Toffoli, E.; Paulus, E. Crescimento, produção e qualidade de frutos de pimenta (Capsicum annuum) emdiferentesespaçamentos. HorticulturaBrasileira, 2015, 33, 91-100. http://doi.org/10.1590/S0102-053620150000100001

Signorini, T.; Renesto, E.; Machado, M.F.P.S.; Bespalhok, D.N.; Monteiro, E.R. Diversidadegenética de espécies de Capsicum com base em dados de isozimas. HorticulturaBrasileira, 2013, 31, 534-539.http://dx.doi.org/10.1590/S0102-05362013000400005

Silva, F.C.S.; Sediyama, T.; Silva, A.F.; Bezerra, A.R.G.; Rosa, D.P.; Ferreira, LV.Identification of new descriptors for differentiation of soybean genotypes by Gower algorithm. African Journal of Agricultural, 2016, 11, 961-966, 2016. http://doi.org/10.5897/AJAR2015.10158

Silva, A.R.; Dias, C.T.S. A cophenetic correlation coefficient for Tocher's method. PesquisaAgropecuáriaBrasileira, 2013,48,589-596. http://dx.doi.org/10.1590/S0100-204X2013000600003

Sudré, C.P.; Gonçalves, L.S.A.; Rodrigues, R.; Riva, E.M.; Amaral Júnior, A.T.; Rivasouza, E.M.; Bento, C.S. Genetic variability in domesticated Capsicum spp. as assessed by morphological and agronomic data in mixed statistical analysis. Genetics and Molecular Research, 2010, 9, 283-294. http://dx.doi.org/10.4238/vol9-1gmr698

Vasconcelos, C.S.; Barbieri, R.L.; Neitzke, R.S.; Priori, D.; Fischer, S.Z.; Mistura, C.C.Determinação da dissimilaridadegenética entre acessos de Capsicum chinense com base emcaracterísticas de flores. Revista Ceres,2012, 59, 493- 498. http://doi.org/10.1590/S0034-737X2012000400009

Downloads

Publicado

2019-12-31

Edição

Seção

Produção Vegetal