Prediction of hybrid performance in maize using molecular markers and joint analyses of hybrids and parental inbreds.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Tobias A SchragMatthias Frisch

Abstract

The identification of superior hybrids is important for the success of a hybrid breeding program. However, field evaluation of all possible crosses among inbred lines requires extremely large resources. Therefore, efforts have been made to predict hybrid performance (HP) by using field data of related genotypes and molecular markers. In the present study, the main objective was to assess the usefulness of pedigree information in combination with the covariance between general combining ability (GCA) and per se performance of parental lines for HP prediction. In addition, we compared the prediction efficiency of AFLP and SSR marker data, estimated marker effects separately for reciprocal allelic configurations (among heterotic groups) of heterozygous marker loci in hybrids, and imputed missing AFLP marker data for marker-based HP prediction. Unbalanced field data of 400 maize dent x flint hybrids from 9 factorials and of 79 inbred parents were subjected to joint analyses with mixed linear models. The inbreds were genotyped with 910 AFLP and 256 SSR markers. Efficiency of prediction (R (2)) was estimated by cross-validation for hybrids having no or one parent evaluated in testcrosses. Best linear unbiased prediction of GCA and sp...Continue Reading

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Citations

May 14, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jochen C ReifAlbrecht E Melchinger
Nov 6, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Alexander ThiemannStefan Scholten
Nov 17, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Matthias SteinfathJoachim Selbig
Nov 12, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Steven MaenhoutGeert Haesaert
Nov 17, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Matthias FrischAlbrecht E Melchinger
Nov 16, 2010·Genome Génome / Conseil National De Recherches Canada·W A Cowling, E Balázs
May 7, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Xuefei MiAlbrecht E Melchinger
Sep 5, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Elisabetta FrascaroliAlbrecht E Melchinger
Sep 27, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huanhuan QiBing Yue
May 24, 2016·Bio Systems·Christian Edlich-MuthJoachim Selbig
Feb 26, 2016·Scientific Reports·Zhiwu DanWenchao Huang
Sep 21, 2016·G3 : Genes - Genomes - Genetics·Dnyaneshwar C KadamAaron J Lorenz
May 28, 2019·Plant Biotechnology Journal·Yanru CuiShizhong Xu
Nov 24, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·K O G DiasM M Pastina
Apr 13, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Rocío Acosta-PechPaulino Pérez-Rodríguez
Feb 19, 2019·Plant Methods·Filipe Couto AlvesGustavo de Los Campos
Jun 15, 2019·Plant Biotechnology Journal·Hongjun LiuXuehui Huang
Sep 8, 2019·Plants·Agnieszka TomkowiakPrzemysław Łukasz Kowalczewski
Jan 1, 2017·Euphytica; Netherlands journal of plant breeding·Susan G NjeriGeorge Chemining'wa

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