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Development and QTL assessment of Triticum aestivum-Aegilops tauschii introgression lines.
Theor Appl Genet. 2006 Feb; 112(4):634-47.TA

Abstract

A set of 84 bread wheat lines, each containing a single homozygous introgression of the Aegilops tauschii genome was produced in the 'Chinese Spring' background via backcrossing of the D-genome chromosome substitution lines 'Chinese Spring'/Sears's 'Synthetic 6x' with the recurrent parent and subsequent selfing. The development of the lines was accompanied by microsatellite marker assisted selection. With the exception of three telomeric regions at chromosomes 1DL, 4DL and 7DS, and a region of less than 24 cM on the chromosome arm 3DL, the genome of Ae. tauschii is fully represented in these lines. The newly developed lines were used for the discovery of morphological and agronomical quantitative trait loci (QTLs) from the wild species. Fifty-two introgression lines were grown in the field and evaluated for six traits including flowering time, plant height, ear length, spikelet number, fertility and grain weight per ear. Seventeen significant QTLs were detected, Ae. tauschii contributed favourable alleles at nine loci influencing five traits. The whole set of 84 homozygous lines provides a tool for further testing the effects and stability of the detected QTLs and for the evaluation of new traits.

Authors+Show Affiliations

Pestsova EG
Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, 06466, Gatersleben, Germany. Elena.Pestsova@uni-duesseldorf.de
Börner A
No affiliation info available
Röder MS
No affiliation info available

MeSH

AllelesCrosses, GeneticFertilityFlowersGenotypeHomozygotePhenotypePlant StemsPoaceaeQuantitative Trait LociTriticum

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16341683

Citation

Pestsova, Elena G., et al. "Development and QTL Assessment of Triticum aestivum-Aegilops Tauschii Introgression Lines." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 112, no. 4, 2006, pp. 634-47.
Pestsova EG, Börner A, Röder MS. Development and QTL assessment of Triticum aestivum-Aegilops tauschii introgression lines. Theor Appl Genet. 2006;112(4):634-47.
Pestsova, E. G., Börner, A., & Röder, M. S. (2006). Development and QTL assessment of Triticum aestivum-Aegilops tauschii introgression lines. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 112(4), 634-47.
Pestsova EG, Börner A, Röder MS. Development and QTL Assessment of Triticum aestivum-Aegilops Tauschii Introgression Lines. Theor Appl Genet. 2006;112(4):634-47. PubMed PMID: 16341683.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development and QTL assessment of Triticum aestivum-Aegilops tauschii introgression lines. AU - Pestsova,Elena G, AU - Börner,Andreas, AU - Röder,Marion S, Y1 - 2005/12/09/ PY - 2005/09/13/received PY - 2005/11/17/accepted PY - 2005/12/13/pubmed PY - 2006/4/19/medline PY - 2005/12/13/entrez SP - 634 EP - 47 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 112 IS - 4 N2 - A set of 84 bread wheat lines, each containing a single homozygous introgression of the Aegilops tauschii genome was produced in the 'Chinese Spring' background via backcrossing of the D-genome chromosome substitution lines 'Chinese Spring'/Sears's 'Synthetic 6x' with the recurrent parent and subsequent selfing. The development of the lines was accompanied by microsatellite marker assisted selection. With the exception of three telomeric regions at chromosomes 1DL, 4DL and 7DS, and a region of less than 24 cM on the chromosome arm 3DL, the genome of Ae. tauschii is fully represented in these lines. The newly developed lines were used for the discovery of morphological and agronomical quantitative trait loci (QTLs) from the wild species. Fifty-two introgression lines were grown in the field and evaluated for six traits including flowering time, plant height, ear length, spikelet number, fertility and grain weight per ear. Seventeen significant QTLs were detected, Ae. tauschii contributed favourable alleles at nine loci influencing five traits. The whole set of 84 homozygous lines provides a tool for further testing the effects and stability of the detected QTLs and for the evaluation of new traits. SN - 0040-5752 UR - https://www.unboundmedicine.com/medline/citation/16341683/Development_and_QTL_assessment_of_Triticum_aestivum_Aegilops_tauschii_introgression_lines_ DB - PRIME DP - Unbound Medicine ER -