Genetic diversity of breeding popcorn lines determined by SSR markers
Information about genetic dissimilarity is very important to corroborate genealogical relationships and to predict the most heterozygotic hybrid combinations. Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers. Of a total of 51 evaluated poly...
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Pontificia Universidad Católica de Valparaíso
2010
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oai:scielo:S0717-345820100001000042010-04-28Genetic diversity of breeding popcorn lines determined by SSR markersRibeiro Trindade,Ana PaulaBarth Pinto,Ronald JoséAmaral Júnior,Antonio Teixeira doMangolin,Claudete AparecidaSilva Machado,Maria de Fátima Pires daScapim,Carlos Alberto advanced generations genetic variability molecular markers Zea mays Information about genetic dissimilarity is very important to corroborate genealogical relationships and to predict the most heterozygotic hybrid combinations. Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers. Of a total of 51 evaluated polymorphic primers, 15 were used for polymerase chain reaction (PCR) amplification. The genetic distance was estimated by Rogers’ modified distance. The different popcorn breeding programs in Brazil are possibly using highly similar base-populations. The genetic similarity of lines P1-3 and P8-1 was lowest, while P3-3 and P8-2 were genetically more similar. The cophenetic correlation showed that the Unweighted Pair-Group Method Using Arithmetic Averages (UPGMA) was reliable to discriminate the genotypes in five groups. The clusters were consistent with the estimates of genetic identity. There was a moderate coincidence degree between the groups and genealogy of lines. Higher levels of heterozygosity are expected from crosses between the group containing lines P3-3 and P7-3 with that of P1-3 and P7-4. Crosses between lines P1-3 and P8-1 are also promising.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.13 n.1 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100004en10.4067/S0717-34582010000100004 |
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Scielo Chile |
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topic |
advanced generations genetic variability molecular markers Zea mays |
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advanced generations genetic variability molecular markers Zea mays Ribeiro Trindade,Ana Paula Barth Pinto,Ronald José Amaral Júnior,Antonio Teixeira do Mangolin,Claudete Aparecida Silva Machado,Maria de Fátima Pires da Scapim,Carlos Alberto Genetic diversity of breeding popcorn lines determined by SSR markers |
description |
Information about genetic dissimilarity is very important to corroborate genealogical relationships and to predict the most heterozygotic hybrid combinations. Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers. Of a total of 51 evaluated polymorphic primers, 15 were used for polymerase chain reaction (PCR) amplification. The genetic distance was estimated by Rogers’ modified distance. The different popcorn breeding programs in Brazil are possibly using highly similar base-populations. The genetic similarity of lines P1-3 and P8-1 was lowest, while P3-3 and P8-2 were genetically more similar. The cophenetic correlation showed that the Unweighted Pair-Group Method Using Arithmetic Averages (UPGMA) was reliable to discriminate the genotypes in five groups. The clusters were consistent with the estimates of genetic identity. There was a moderate coincidence degree between the groups and genealogy of lines. Higher levels of heterozygosity are expected from crosses between the group containing lines P3-3 and P7-3 with that of P1-3 and P7-4. Crosses between lines P1-3 and P8-1 are also promising. |
author |
Ribeiro Trindade,Ana Paula Barth Pinto,Ronald José Amaral Júnior,Antonio Teixeira do Mangolin,Claudete Aparecida Silva Machado,Maria de Fátima Pires da Scapim,Carlos Alberto |
author_facet |
Ribeiro Trindade,Ana Paula Barth Pinto,Ronald José Amaral Júnior,Antonio Teixeira do Mangolin,Claudete Aparecida Silva Machado,Maria de Fátima Pires da Scapim,Carlos Alberto |
author_sort |
Ribeiro Trindade,Ana Paula |
title |
Genetic diversity of breeding popcorn lines determined by SSR markers |
title_short |
Genetic diversity of breeding popcorn lines determined by SSR markers |
title_full |
Genetic diversity of breeding popcorn lines determined by SSR markers |
title_fullStr |
Genetic diversity of breeding popcorn lines determined by SSR markers |
title_full_unstemmed |
Genetic diversity of breeding popcorn lines determined by SSR markers |
title_sort |
genetic diversity of breeding popcorn lines determined by ssr markers |
publisher |
Pontificia Universidad Católica de Valparaíso |
publishDate |
2010 |
url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100004 |
work_keys_str_mv |
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