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| Perseguini,Juliana Morini Küpper Cardoso; Silva,Gliciane Micaele Borges; Rosa,João Ricardo Bachega Feijó; Gazaffi,Rodrigo; Marçal,Jéssica Fernanda; Carbonell,Sérgio Augusto Morais; Chiorato,Alisson Fernando; Zucchi,Maria Imaculada; Garcia,Antonio Augusto Franco; Benchimol-Reis,Luciana Lasry. |
| Because of the continuous introduction of germplasm from abroad, some collections have a high number of accessions, making it difficult to explore the genetic variability present in a germplasm bank for conservation and breeding purposes. Therefore, the aim of this study was to quantify and analyze the structure of genetic variability among 500 common bean accessions to construct a core collection. A total of 58 SSRs were used for this purpose. The polymorphism information content (PIC) in the 180 common bean accessions selected to compose the core collection ranged from 0.17 to 0.86, and the discriminatory power (DP) ranged from 0.21 to 0.90. The 500 accessions were clustered into 15 distinct groups and the 180 accessions into four distinct groups in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Molecular markers; Genetic diversity; Genetic structure; Microsatellites; Phaseolus vulgaris L. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000100067 |
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| Perseguini,Juliana Morini Küpper Cardoso; Chioratto,Alisson Fernando; Zucchi,Maria Imaculada; Colombo,Carlos Augusto; Carbonell,Sérgio Augusto Moraes; Mondego,Jorge Mauricio Costa; Gazaffi,Rodrigo; Garcia,Antonio Augusto Franco; Campos,Tatiana de; Souza,Anete Pereira de; Rubiano,Luciana Benchimol. |
| A wide array of molecular markers has been used to investigate the genetic diversity among common bean species. However, the best combination of markers for studying such diversity among common bean cultivars has yet to be determined. Few reports have examined the genetic diversity of the carioca bean, commercially one of the most important common beans in Brazil. In this study, we examined the usefulness of two molecular marker systems (simple sequence repeats - SSRs and amplified fragment length polymorphisms - AFLPs) for assessing the genetic diversity of carioca beans. The amount of information provided by Roger's modified genetic distance was used to analyze SSR data and Jaccards similarity coefficient was used for AFLP data. Seventy SSRs were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AFLPs; Genetic structure; Genetic variability; Phaseolus vulgaris L.; SSRs. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100017 |
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| Briñez,Boris; Perseguini,Juliana Morini Küpper Cardoso; Rosa,Juliana Santa; Bassi,Denis; Gonçalves,João Guilherme Ribeiro; Almeida,Caléo; Paulino,Jean Fausto de Carvalho; Blair,Matthew Ward; Chioratto,Alisson Fernando; Carbonell,Sérgio Augusto Morais; Valdisser,Paula Arielle Mendes Ribeiro; Vianello,Rosana Pereira; Benchimol-Reis,Luciana Lasry. |
| Abstract The common bean is characterized by high sensitivity to drought and low productivity. Breeding for drought resistance in this species involves genes of different genetic groups. In this work, we used a SEA 5 x AND 277 cross to map quantitative trait loci associated with drought tolerance in order to assess the factors that determine the magnitude of drought response in common beans. A total of 438 polymorphic markers were used to genotype the F8 mapping population. Phenotyping was done in two greenhouses, one used to simulate drought and the other to simulate irrigated conditions. Fourteen traits associated with drought tolerance were measured to identify the quantitative trait loci (QTLs). The map was constructed with 331 markers that covered all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic stress; Interpopulation gene-pool; Molecular markers; QTL mapping; Water deficit. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000500813 |
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