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Development, utilization of introgression lines using a synthetic wheat as donor.
Theor Appl Genet. 2006 May; 112(7):1360-73.TA

Abstract

A series of introgression lines (ILs) were generated from repeated backcrossing between the exotic hexaploid wheat genotype Am3 and the common wheat genotype Laizhou953. Am3 was synthesized by crossing Triticum carthlicum with Aegilops tauschii and was used as the donor parent in this study, and Laizhou953 was used as the recurrent parent. Two hundred and five SSR markers showing polymorphism between the two parents were used to identify the introgressed Am3 chromosome segments in 97 BC4F3 ILs. The introgressed segments in each line and the length of the introgressed segments were estimated according to the wheat SSR consensus map. The introgressed segments from Am3 in the 97 lines covers 37.7% of the donor genome. The introgressed segments were most found on 2D, 3B, 6B, and 1D with coverage of 59.8, 59.5, 59.1, and 59% of the chromosomes, respectively. None of the 97 lines tested contained chromosome 4D segments introgressed from Am3. Introgressed segments for each of the chromosomes were mapped using the consensus wheat linkage map. Nine agronomic traits from BC4F3 lines were evaluated and the phenotype showed most lines have the tendency to be more similar to the recurrent parent. There were lines showing better agronomic traits than the recurrent parent, which indicated the introgression of favorable alleles from the exotic hexaploid wheat into the elite cultivar Laizhou953. Marker and phenotype data were used to identify quantitative trait loci (QTLs) controlling these nine traits. In total, 38, 33, and 28 putative QTLs were detected for seven of the nine traits in 2003, 2004, and 2005, respectively. Some of these agronomic important QTLs were detected in more than one season.

Authors+Show Affiliations

Key Lab of Crop Germplasm and Biotechnology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, 100081, Beijing, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

16550399

Citation

Liu, Shubing, et al. "Development, Utilization of Introgression Lines Using a Synthetic Wheat as Donor." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 112, no. 7, 2006, pp. 1360-73.
Liu S, Zhou R, Dong Y, et al. Development, utilization of introgression lines using a synthetic wheat as donor. Theor Appl Genet. 2006;112(7):1360-73.
Liu, S., Zhou, R., Dong, Y., Li, P., & Jia, J. (2006). Development, utilization of introgression lines using a synthetic wheat as donor. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 112(7), 1360-73.
Liu S, et al. Development, Utilization of Introgression Lines Using a Synthetic Wheat as Donor. Theor Appl Genet. 2006;112(7):1360-73. PubMed PMID: 16550399.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development, utilization of introgression lines using a synthetic wheat as donor. AU - Liu,Shubing, AU - Zhou,Ronghua, AU - Dong,Yuchen, AU - Li,Pei, AU - Jia,Jizeng, Y1 - 2006/03/21/ PY - 2005/10/15/received PY - 2006/02/05/accepted PY - 2006/3/22/pubmed PY - 2006/6/30/medline PY - 2006/3/22/entrez SP - 1360 EP - 73 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 112 IS - 7 N2 - A series of introgression lines (ILs) were generated from repeated backcrossing between the exotic hexaploid wheat genotype Am3 and the common wheat genotype Laizhou953. Am3 was synthesized by crossing Triticum carthlicum with Aegilops tauschii and was used as the donor parent in this study, and Laizhou953 was used as the recurrent parent. Two hundred and five SSR markers showing polymorphism between the two parents were used to identify the introgressed Am3 chromosome segments in 97 BC4F3 ILs. The introgressed segments in each line and the length of the introgressed segments were estimated according to the wheat SSR consensus map. The introgressed segments from Am3 in the 97 lines covers 37.7% of the donor genome. The introgressed segments were most found on 2D, 3B, 6B, and 1D with coverage of 59.8, 59.5, 59.1, and 59% of the chromosomes, respectively. None of the 97 lines tested contained chromosome 4D segments introgressed from Am3. Introgressed segments for each of the chromosomes were mapped using the consensus wheat linkage map. Nine agronomic traits from BC4F3 lines were evaluated and the phenotype showed most lines have the tendency to be more similar to the recurrent parent. There were lines showing better agronomic traits than the recurrent parent, which indicated the introgression of favorable alleles from the exotic hexaploid wheat into the elite cultivar Laizhou953. Marker and phenotype data were used to identify quantitative trait loci (QTLs) controlling these nine traits. In total, 38, 33, and 28 putative QTLs were detected for seven of the nine traits in 2003, 2004, and 2005, respectively. Some of these agronomic important QTLs were detected in more than one season. SN - 0040-5752 UR - https://www.unboundmedicine.com/medline/citation/16550399/Development_utilization_of_introgression_lines_using_a_synthetic_wheat_as_donor_ L2 - https://dx.doi.org/10.1007/s00122-006-0238-x DB - PRIME DP - Unbound Medicine ER -