An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)

A major obstacle in corn (Zea mays L.) breeding programs is how to obtain strains which, when combined, ensure increased productivity in all crop characteristics. Therefore, the objective of this study was to evaluate the prediction efficiency of hybrid maize using diallel analysis and the best line...

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Autores principales:	Oliveira,Gustavo H.F., Buzinaro,Rodolfo, Revolti,Lucas T.M., Giorgenon,Carlos H.B, Charnai,Kaue, Resende,Diego, Moro,Gustavo V
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	GCA mixed models SCA Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300005
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spelling	oai:scielo:S0718-583920160003000052018-10-01An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)Oliveira,Gustavo H.F.Buzinaro,RodolfoRevolti,Lucas T.M.Giorgenon,Carlos H.BCharnai,KaueResende,DiegoMoro,Gustavo V GCA mixed models SCA Zea mays A major obstacle in corn (Zea mays L.) breeding programs is how to obtain strains which, when combined, ensure increased productivity in all crop characteristics. Therefore, the objective of this study was to evaluate the prediction efficiency of hybrid maize using diallel analysis and the best linear unbiased predictor (BLUP). Eight synthetic varieties were sown in a diallel scheme and the hybrid and their parents were then evaluated in three separate environments; both combining ability and predicted breeding values (BLUPs) were estimated. Correlations between the BLUP and combining abilities were also obtained. Combining ability analysis revealed that both additive and non-additive types of gene action were important in the studied traits. There was a moderate to high correlation between the mean square of the combining ability and the predicted breeding values. This shows that BLUP can be used to select the best parents for different traits, especially for ear height and ear position, which had the highest correlations. The parent VAR-01 had significant general combining ability (GCA) values, and it can be used in crosses to reduce plant height, ear height, and ear position while the parent VAR-06 can participate in crosses to increase ear height, plant height, and ear position. The result obtained for combining ability was moderately to highly consistent with BLUP results, but selection must be carefully undertaken.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.3 20162016-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300005en10.4067/S0718-58392016000300005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	GCA mixed models SCA Zea mays
spellingShingle	GCA mixed models SCA Zea mays Oliveira,Gustavo H.F. Buzinaro,Rodolfo Revolti,Lucas T.M. Giorgenon,Carlos H.B Charnai,Kaue Resende,Diego Moro,Gustavo V An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
description	A major obstacle in corn (Zea mays L.) breeding programs is how to obtain strains which, when combined, ensure increased productivity in all crop characteristics. Therefore, the objective of this study was to evaluate the prediction efficiency of hybrid maize using diallel analysis and the best linear unbiased predictor (BLUP). Eight synthetic varieties were sown in a diallel scheme and the hybrid and their parents were then evaluated in three separate environments; both combining ability and predicted breeding values (BLUPs) were estimated. Correlations between the BLUP and combining abilities were also obtained. Combining ability analysis revealed that both additive and non-additive types of gene action were important in the studied traits. There was a moderate to high correlation between the mean square of the combining ability and the predicted breeding values. This shows that BLUP can be used to select the best parents for different traits, especially for ear height and ear position, which had the highest correlations. The parent VAR-01 had significant general combining ability (GCA) values, and it can be used in crosses to reduce plant height, ear height, and ear position while the parent VAR-06 can participate in crosses to increase ear height, plant height, and ear position. The result obtained for combining ability was moderately to highly consistent with BLUP results, but selection must be carefully undertaken.
author	Oliveira,Gustavo H.F. Buzinaro,Rodolfo Revolti,Lucas T.M. Giorgenon,Carlos H.B Charnai,Kaue Resende,Diego Moro,Gustavo V
author_facet	Oliveira,Gustavo H.F. Buzinaro,Rodolfo Revolti,Lucas T.M. Giorgenon,Carlos H.B Charnai,Kaue Resende,Diego Moro,Gustavo V
author_sort	Oliveira,Gustavo H.F.
title	An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
title_short	An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
title_full	An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
title_fullStr	An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
title_full_unstemmed	An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)
title_sort	accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (blup)
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000300005
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An accurate prediction of maize crosses using diallel analysis and best linear unbiased predictor (BLUP)

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