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Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys huashanica 7Ns Disomic Addition Line with Powdery Mildew Resistance.
Int J Mol Sci. 2022 Sep 07; 23(18)IJ

Abstract

Powdery mildew caused by Blumeria graminis f. sp. tritici is a devastating disease that reduces wheat yield and quality worldwide. The exploration and utilization of new resistance genes from wild wheat relatives is the most effective strategy against this disease. Psathyrostachys huashanica Keng f. ex P. C. Kuo (2n = 2x = 14, NsNs) is an important tertiary gene donor with multiple valuable traits for wheat genetic improvement, especially disease resistance. In this study, we developed and identified a new wheat-P. huashanica disomic addition line, 18-1-5-derived from a cross between P. huashanica and common wheat lines Chinese Spring and CSph2b. Sequential genomic and multicolor fluorescence in situ hybridization analyses revealed that 18-1-5 harbored 21 pairs of wheat chromosomes plus a pair of alien Ns chromosomes. Non-denaturing fluorescence in situ hybridization and molecular marker analyses further demonstrated that the alien chromosomes were derived from chromosome 7Ns of P. huashanica. The assessment of powdery mildew response revealed that line 18-1-5 was highly resistant at the adult stage to powdery mildew pathogens prevalent in China. The evaluation of agronomic traits indicated that 18-1-5 had a significantly reduced plant height and an increased kernel length compared with its wheat parents. Using genotyping-by-sequencing technology, we developed 118 PCR-based markers specifically for chromosome 7Ns of P. huashanica and found that 26 of these markers could be used to distinguish the genomes of P. huashanica and other wheat-related species. Line 18-1-5 can therefore serve as a promising bridging parent for wheat disease resistance breeding. These markers should be conducive for the rapid, precise detection of P. huashanica chromosomes and chromosomal segments carrying Pm resistance gene(s) during marker-assisted breeding and for the investigation of genetic differences and phylogenetic relationships among diverse Ns genomes and other closely related ones.

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Authors+Show Affiliations

Tan B
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Wang M
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Cai L
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Li S
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Zhu W
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Xu L
Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Wang Y
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Zeng J
College of Resources, Sichuan Agricultural University, Chengdu 611130, China.
Fan X
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Sha L
College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
Wu D
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Cheng Y
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China.
Zhang H
College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
Chen G
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Zhou Y
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.
Kang H
State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China. Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China.

MeSH

Chromosomes, PlantDisease ResistanceErysipheHybridization, GeneticIn Situ Hybridization, FluorescencePhylogenyPlant BreedingPlant DiseasesPoaceaeTriticum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

36142197

Citation

Tan, Binwen, et al. "Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys Huashanica 7Ns Disomic Addition Line With Powdery Mildew Resistance." International Journal of Molecular Sciences, vol. 23, no. 18, 2022.
Tan B, Wang M, Cai L, et al. Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys huashanica 7Ns Disomic Addition Line with Powdery Mildew Resistance. Int J Mol Sci. 2022;23(18).
Tan, B., Wang, M., Cai, L., Li, S., Zhu, W., Xu, L., Wang, Y., Zeng, J., Fan, X., Sha, L., Wu, D., Cheng, Y., Zhang, H., Chen, G., Zhou, Y., & Kang, H. (2022). Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys huashanica 7Ns Disomic Addition Line with Powdery Mildew Resistance. International Journal of Molecular Sciences, 23(18). https://doi.org/10.3390/ijms231810285
Tan B, et al. Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys Huashanica 7Ns Disomic Addition Line With Powdery Mildew Resistance. Int J Mol Sci. 2022 Sep 7;23(18) PubMed PMID: 36142197.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cytogenetic and Molecular Marker Analyses of a Novel Wheat-Psathyrostachys huashanica 7Ns Disomic Addition Line with Powdery Mildew Resistance. AU - Tan,Binwen, AU - Wang,Miaomiao, AU - Cai,Li, AU - Li,Sanyue, AU - Zhu,Wei, AU - Xu,Lili, AU - Wang,Yi, AU - Zeng,Jian, AU - Fan,Xing, AU - Sha,Lina, AU - Wu,Dandan, AU - Cheng,Yiran, AU - Zhang,Haiqin, AU - Chen,Guoyue, AU - Zhou,Yonghong, AU - Kang,Houyang, Y1 - 2022/09/07/ PY - 2022/07/31/received PY - 2022/08/30/revised PY - 2022/08/31/accepted PY - 2022/9/23/entrez PY - 2022/9/24/pubmed PY - 2022/9/28/medline KW - GBS KW - PCR-based marker KW - Psathyrostachys huashanica KW - alien addition line KW - powdery mildew JF - International journal of molecular sciences JO - Int J Mol Sci VL - 23 IS - 18 N2 - Powdery mildew caused by Blumeria graminis f. sp. tritici is a devastating disease that reduces wheat yield and quality worldwide. The exploration and utilization of new resistance genes from wild wheat relatives is the most effective strategy against this disease. Psathyrostachys huashanica Keng f. ex P. C. Kuo (2n = 2x = 14, NsNs) is an important tertiary gene donor with multiple valuable traits for wheat genetic improvement, especially disease resistance. In this study, we developed and identified a new wheat-P. huashanica disomic addition line, 18-1-5-derived from a cross between P. huashanica and common wheat lines Chinese Spring and CSph2b. Sequential genomic and multicolor fluorescence in situ hybridization analyses revealed that 18-1-5 harbored 21 pairs of wheat chromosomes plus a pair of alien Ns chromosomes. Non-denaturing fluorescence in situ hybridization and molecular marker analyses further demonstrated that the alien chromosomes were derived from chromosome 7Ns of P. huashanica. The assessment of powdery mildew response revealed that line 18-1-5 was highly resistant at the adult stage to powdery mildew pathogens prevalent in China. The evaluation of agronomic traits indicated that 18-1-5 had a significantly reduced plant height and an increased kernel length compared with its wheat parents. Using genotyping-by-sequencing technology, we developed 118 PCR-based markers specifically for chromosome 7Ns of P. huashanica and found that 26 of these markers could be used to distinguish the genomes of P. huashanica and other wheat-related species. Line 18-1-5 can therefore serve as a promising bridging parent for wheat disease resistance breeding. These markers should be conducive for the rapid, precise detection of P. huashanica chromosomes and chromosomal segments carrying Pm resistance gene(s) during marker-assisted breeding and for the investigation of genetic differences and phylogenetic relationships among diverse Ns genomes and other closely related ones. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/36142197/Cytogenetic_and_Molecular_Marker_Analyses_of_a_Novel_Wheat_Psathyrostachys_huashanica_7Ns_Disomic_Addition_Line_with_Powdery_Mildew_Resistance_ DB - PRIME DP - Unbound Medicine ER -
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