Tags

Type your tag names separated by a space and hit enter

Fine mapping of the stem rust resistance gene SrTA10187.
Theor Appl Genet. 2016 Dec; 129(12):2369-2378.TA

Abstract

KEY MESSAGE

SrTA10187 was fine-mapped to a 1.1 cM interval, candidate genes were identified in the region of interest, and molecular markers were developed for marker-assisted selection and Sr gene pyramiding. Stem rust (Puccinia graminis f. sp. tritici, Pgt) races belonging to the Ug99 (TTKSK) race group pose a serious threat to global wheat (Triticum aestivum L.) production. To improve Pgt host resistance, the Ug99-effective resistance gene SrTA10187 previously identified in Aegilops tauschii Coss. was introgressed into wheat, and mapped to the short arm of wheat chromosome 6D. In this study, high-resolution mapping of SrTA10187 was done using a population of 1,060 plants. Pgt resistance was screened using race QFCSC. PCR-based SNP and STS markers were developed from genotyping-by-sequencing tags and SNP sequences available in online databases. SrTA10187 segregated as expected in a 3:1 ratio of resistant to susceptible individuals in three out of six BC3F2 families, and was fine-mapped to a 1.1 cM region on wheat chromosome 6DS. Marker context sequence was aligned to the reference Ae. tauschii genome to identify the physical region encompassing SrTA10187. Due to the size of the corresponding region, candidate disease resistance genes could not be identified with confidence. Comparisons with the Ae. tauschii genetic map developed by Luo et al. (PNAS 110(19):7940-7945, 2013) enabled identification of a discrete genetic locus and a BAC minimum tiling path of the region spanning SrTA10187. Annotation of pooled BAC library sequences led to the identification of candidate genes in the region of interest-including a single NB-ARC-LRR gene. The shorter genetic interval and flanking KASP™ and STS markers developed in this study will facilitate marker-assisted selection, gene pyramiding, and positional cloning of SrTA10187.

Authors+Show Affiliations

Wiersma AT
Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, Room A286, East Lansing, MI, 48824, USA.
Brown LK
Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, Room A286, East Lansing, MI, 48824, USA.
Brisco EI
Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, Room A286, East Lansing, MI, 48824, USA.
Liu TL
Department of Plant Biology, Michigan State University, 612 Wilson Rd, Room 166, East Lansing, MI, 48824, USA.
Childs KL
Department of Plant Biology and Center for Genomics-Enabled Plant Science, Michigan State University, 612 Wilson Rd, Room 166, East Lansing, MI, 48824, USA.
Poland JA
Department of Plant Pathology, Wheat Genetics Resource Center, Kansas State University, 4011 Throckmorton Plant Sciences Center, Manhattan, KS, 66506, USA.
Sehgal SK
Department of Plant Science, South Dakota State University, Plant Science-Box 2140C, Brookings, SD, 57007, USA.
Olson EL
Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, Room A286, East Lansing, MI, 48824, USA. eolson@msu.edu.

MeSH

BasidiomycotaChromosome MappingChromosomes, PlantDisease ResistanceGenes, PlantGenetic LinkagePhenotypePhysical Chromosome MappingPlant DiseasesPoaceaePolymorphism, Single NucleotideSequence Tagged SitesTriticum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27581540

Citation

Wiersma, Andrew T., et al. "Fine Mapping of the Stem Rust Resistance Gene SrTA10187." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 129, no. 12, 2016, pp. 2369-2378.
Wiersma AT, Brown LK, Brisco EI, et al. Fine mapping of the stem rust resistance gene SrTA10187. Theor Appl Genet. 2016;129(12):2369-2378.
Wiersma, A. T., Brown, L. K., Brisco, E. I., Liu, T. L., Childs, K. L., Poland, J. A., Sehgal, S. K., & Olson, E. L. (2016). Fine mapping of the stem rust resistance gene SrTA10187. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 129(12), 2369-2378.
Wiersma AT, et al. Fine Mapping of the Stem Rust Resistance Gene SrTA10187. Theor Appl Genet. 2016;129(12):2369-2378. PubMed PMID: 27581540.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fine mapping of the stem rust resistance gene SrTA10187. AU - Wiersma,Andrew T, AU - Brown,Linda K, AU - Brisco,Elizabeth I, AU - Liu,Tiffany L, AU - Childs,Kevin L, AU - Poland,Jesse A, AU - Sehgal,Sunish K, AU - Olson,Eric L, Y1 - 2016/08/31/ PY - 2016/06/07/received PY - 2016/08/24/accepted PY - 2016/9/2/pubmed PY - 2017/2/9/medline PY - 2016/9/2/entrez SP - 2369 EP - 2378 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 129 IS - 12 N2 - KEY MESSAGE: SrTA10187 was fine-mapped to a 1.1 cM interval, candidate genes were identified in the region of interest, and molecular markers were developed for marker-assisted selection and Sr gene pyramiding. Stem rust (Puccinia graminis f. sp. tritici, Pgt) races belonging to the Ug99 (TTKSK) race group pose a serious threat to global wheat (Triticum aestivum L.) production. To improve Pgt host resistance, the Ug99-effective resistance gene SrTA10187 previously identified in Aegilops tauschii Coss. was introgressed into wheat, and mapped to the short arm of wheat chromosome 6D. In this study, high-resolution mapping of SrTA10187 was done using a population of 1,060 plants. Pgt resistance was screened using race QFCSC. PCR-based SNP and STS markers were developed from genotyping-by-sequencing tags and SNP sequences available in online databases. SrTA10187 segregated as expected in a 3:1 ratio of resistant to susceptible individuals in three out of six BC3F2 families, and was fine-mapped to a 1.1 cM region on wheat chromosome 6DS. Marker context sequence was aligned to the reference Ae. tauschii genome to identify the physical region encompassing SrTA10187. Due to the size of the corresponding region, candidate disease resistance genes could not be identified with confidence. Comparisons with the Ae. tauschii genetic map developed by Luo et al. (PNAS 110(19):7940-7945, 2013) enabled identification of a discrete genetic locus and a BAC minimum tiling path of the region spanning SrTA10187. Annotation of pooled BAC library sequences led to the identification of candidate genes in the region of interest-including a single NB-ARC-LRR gene. The shorter genetic interval and flanking KASP™ and STS markers developed in this study will facilitate marker-assisted selection, gene pyramiding, and positional cloning of SrTA10187. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/27581540/Fine_mapping_of_the_stem_rust_resistance_gene_SrTA10187_ DB - PRIME DP - Unbound Medicine ER -