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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Autores principales: 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
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso 2010
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100004
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spelling 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
institution Scielo Chile
collection Scielo Chile
language English
topic advanced generations
genetic variability
molecular markers
Zea mays
spellingShingle 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
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