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Li J, Li J, Cheng X, Yang Z, Pang Y, Wang C, Wu J, Ji W, Chen X, Zhao J. The addition of Psathyrostachys Huashanica Keng 6Ns large segment chromosomes has positive impact on stripe rust resistance and plant spikelet number of common wheat. BMC PLANT BIOLOGY 2024; 24:685. [PMID: 39026182 PMCID: PMC11256485 DOI: 10.1186/s12870-024-05395-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 07/09/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND Developing novel germplasm by using wheat wild related species is an effective way to rebuild the wheat resource bank. The Psathyrostachys huashanica Keng (P. huashanica, 2n = 2x = 14, NsNs) is regarded as a superior species to improve wheat breeding because of its multi-resistance, early maturation and numerous tiller traits. Introducing genetic components of P. huashanica into the common wheat background is the most important step in achieving the effective use. Therefore, the cytogenetic characterization and influence of the introgressed P. huashanica large segment chromosomes in the wheat background is necessary to be explored. RESULTS In this study, we characterized a novel derived line, named D88-2a, a progeny of the former characterized wheat-P. huashanica partial amphiploid line H8911 (2n = 7x = 49, AABBDDNs). Cytological identification showed that the chromosomal composition of D88-2a was 2n = 44 = 22II, indicating the addition of exogenous chromosomes. Genomic in situ hybridization demonstrated that the supernumerary chromosomes were a pair of homologues from the P. huashanica and could be stably inherited in the common wheat background. Molecular markers and 15 K SNP array indicated that the additional chromosomes were derived from the sixth homoeologous group (i.e., 6Ns) of P. huashanica. Based on the distribution of the heterozygous single-nucleotide polymorphism sites and fluorescence in situ hybridization karyotype of each chromosome, this pair of additional chromosomes was confirmed as P. huashanica 6Ns large segment chromosomes, which contained the entire short arm and the proximal centromere portion of the long arm. In terms of the agronomic traits, the addition line D88-2a exhibited enhanced stripe rust resistance, improved spike characteristics and increased protein content than its wheat parent line 7182. CONCLUSIONS The new wheat germplasm D88-2a is a novel cytogenetically stable wheat-P. huashanica 6Ns large segment addition line, and the introgressed large segment alien chromosome has positive impact on plant spikelet number and stripe rust resistance. Thus, this germplasm can be used for genetic improvement of cultivated wheat and the study of functional alien chromosome segment.
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Affiliation(s)
- Jiaojiao Li
- College of Agronomy, Henan University of Science and Technology, Luoyang, Henan, 471023, China
| | - Jiachuang Li
- College of Agronomy, Henan University of Science and Technology, Luoyang, Henan, 471023, China
| | - Xueni Cheng
- College of Life Science, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zujun Yang
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610000, China
| | - Yuhui Pang
- College of Agronomy, Henan University of Science and Technology, Luoyang, Henan, 471023, China
| | - Chunping Wang
- College of Agronomy, Henan University of Science and Technology, Luoyang, Henan, 471023, China
| | - Jun Wu
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wanquan Ji
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xinhong Chen
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Jixin Zhao
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Wang J, Han G, Liu H, Yan H, Jin Y, Cao L, Zhou Y, An D. Development of novel wheat-rye 6RS small fragment translocation lines with powdery mildew resistance and physical mapping of the resistance gene PmW6RS. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:179. [PMID: 37548696 DOI: 10.1007/s00122-023-04433-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 07/24/2023] [Indexed: 08/08/2023]
Abstract
KEY MESSAGE Novel wheat-rye 6RS small fragment translocation lines with powdery mildew resistance were developed, and the resistance gene PmW6RS was physically mapped onto 6RS-0.58-0.66-bin corresponding to 18.38 Mb in Weining rye. Rye (Secale cereale L., RR) contains valuable genes for wheat improvement. However, most of the rye resistance genes have not been successfully used in wheat cultivars. Identification of new rye resistance genes and transfer of these genes to wheat by developing small fragment translocation lines will make these genes more usable for wheat breeding. In this study, a broad-spectrum powdery mildew resistance gene PmW6RS was localized on rye chromosome arm 6RS using a new set of wheat-rye disomic and telosomic addition lines. To further study and use PmW6RS, 164 wheat-rye 6RS translocation lines were developed by 60Coγ-ray irradiation. Seedling and adult stage powdery mildew resistance analysis showed that 106 of the translocation lines were resistant. A physical map of 6RS was constructed using the 6RS translocation and deletion lines, and PmW6RS was localized in the 6RS-0.58-0.66-bin, flanked by markers X6RS-3 and X6RS-10 corresponding to the physical interval of 50.23-68.61 Mb in Weining rye genome. A total of 23 resistance-related genes were annotated. Nine markers co-segregate with the 6RS-0.58-0.66-bin, which can be used to rapidly trace the 6RS fragment carrying PmW6RS. Small fragment translocation lines with powdery mildew resistance were backcrossed with wheat cultivars, and 39 agronomically acceptable homozygous 6RS small fragment translocation lines were obtained. In conclusion, this study not only provides novel gene source and germplasms for wheat resistance breeding, but also laid a solid foundation for cloning of PmW6RS.
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Affiliation(s)
- Jing Wang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Guohao Han
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Hong Liu
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Hanwen Yan
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Yuli Jin
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Lijun Cao
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China
| | - Yilin Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Diaoguo An
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China.
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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Ashraf R, Johansson E, Vallenback P, Steffenson BJ, Bajgain P, Rahmatov M. Identification of a Small Translocation from 6R Possessing Stripe Rust Resistance to Wheat. PLANT DISEASE 2023; 107:720-729. [PMID: 35900348 DOI: 10.1094/pdis-07-22-1666-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici Eriks. & E. Henn, is the most devastating fungal disease of bread wheat. Here, a wheat-rye multiple disomic substitution line, SLU126 4R (4D), 5R (5D), and 6R (7D), possessing resistance against 25 races of P. striiformis f. sp. tritici, was used and crossed with Chinese Spring ph1b to induce homeologous recombination to produce introgressions with a reduced rye chromosome segment. Seedling assays confirmed that the stripe rust resistance from SLU126 was retained over multiple generations. Through genotyping-by-sequencing (GBS) platforms and aligning the putative GBS-single-nucleotide polymorphism (SNPs) to the full-length annotated rye nucleotide-binding leucine-rich repeat (NLR) genes in the parental lines (CS ph1b, SLU126, CSA, and SLU820), we identified the physical position of 26, 13, and 9 NLR genes on chromosomes 6R, 4R, and 5R, respectively. The physical positions of 25 NLR genes on chromosome 6R were identified from 568,460,437 bp to 879,958,268 bp in the 6RL chromosome segment. Based on these NLR positions on the 6RL chromosome segment, the three linked SNPs (868,123,650 to 873,285,112 bp) were validated through kompetitive allele-specific PCR (KASP) assays in SLU126 and resistance plants in the family 29-N3-5. Using these KASP markers, we identified a small piece of the rye translocation (i.e., as a possible 6DS.6DL.6RL.6DL) containing the stripe resistance gene, temporary designated YrSLU, within the 6RL segment. This new stripe rust resistance gene provides an additional asset for wheat improvement to mitigate yield losses caused by stripe rust.
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Affiliation(s)
- Rimsha Ashraf
- Swedish University of Agricultural Sciences, Department of Plant Breeding, P.O. Box 190, SE-234 22 Lomma, Sweden
| | - Eva Johansson
- Swedish University of Agricultural Sciences, Department of Plant Breeding, P.O. Box 190, SE-234 22 Lomma, Sweden
| | | | - Brian J Steffenson
- Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108, U.S.A
| | - Prabin Bajgain
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108, U.S.A
| | - Mahbubjon Rahmatov
- Swedish University of Agricultural Sciences, Department of Plant Breeding, P.O. Box 190, SE-234 22 Lomma, Sweden
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Li G, Li J, Zhang Y, Ma Q, Yang E, Zhang P, Dundas I, Yang Z. Molecular and cytogenetic dissection of stripe rust resistance gene Yr83 from rye 6R and generation of resistant germplasm in wheat breeding. FRONTIERS IN PLANT SCIENCE 2022; 13:1035784. [PMID: 36299784 PMCID: PMC9589168 DOI: 10.3389/fpls.2022.1035784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Rye 6R-derived stripe rust resistance gene Yr83 in wheat background was physically mapped to fraction length (FL) 0.87-1.00 on the long arm by non-denaturing-fluorescence in situ hybridization (ND-FISH), Oligo-FISH painting and 6R-specific PCR markers.Stripe rust resistance gene Yr83 derived from chromosome 6R of rye (Secale cereale) "Merced" has displayed high resistance to both Australian and Chinese wheat stripe rust isolates. With the aim to physically map Yr83 to a more precise region, new wheat- 6R deletion and translocation lines were produced from derived progenies of the 6R(6D) substitution line. The non-denaturing fluorescence in situ hybridization (ND-FISH) patterns of 6R were established to precisely characterize the variations of 6R in different wheat backgrounds. Comparative ND-FISH analysis localized the breakpoints of 6RL chromosomes relative to Oligo-pSc200 and Oligo-pSc119.2 rich sites in deletion lines. Molecular marker and resistance analyses confirmed that Yr83 is physically located at the fraction length (FL) 0.87-1.00 of 6RL and covers the corresponding region of 806-881 Mb in the reference genome of Lo7. Oligo-FISH painting demonstrated that the region carrying Yr83 is syntenic to the distal end of long arm of homoeologous group 7 of the Triticeae genome. The developed wheat-6R lines carrying the Yr83 gene will be useful for breeding for rust resistance.
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Affiliation(s)
- Guangrong Li
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Jianbo Li
- School of Life and Environmental Sciences, Plant Breeding Institute, The University of Sydney, Cobbitty, NSW, Australia
| | - Yao Zhang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Qiang Ma
- Characteristic Crops Research Institute, Chongqing Academy of Agricultural Sciences, Yongchuan, China
| | - Ennian Yang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Peng Zhang
- School of Life and Environmental Sciences, Plant Breeding Institute, The University of Sydney, Cobbitty, NSW, Australia
| | - Ian Dundas
- School of Agriculture, Food and Wine, The University of Adelaide, Waite, Glen Osmond, SA, Australia
| | - Zujun Yang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
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Development and Molecular Cytogenetic Characterization of a Novel Wheat-Rye T6RS.6AL Translocation Line from Secale cereale L. Qinling with Resistance to Stripe Rust and Powdery Mildew. Int J Mol Sci 2022; 23:ijms231810495. [PMID: 36142406 PMCID: PMC9502444 DOI: 10.3390/ijms231810495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/26/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
In this study, a novel T6RS.6AL translocation line, 117-6, was selected from a cross between common Chuannong25 (CN25) wheat and Qinling rye. The results of nondenaturing fluorescence in situ hybridization (ND-FISH) and PCR showed that 117-6 contained two T6RS.6AL translocation chromosomes. The distal region of the 6RS chromosome in 117-6 was mutant and showed different FISH signal patterns. When inoculated with different stripe rust races and powdery mildew races in seedlings, 117-6 expressed high resistance to them. The 117-6 line also exhibited high resistance to stripe rust and powdery mildew in the field under natural Puccinia striiformis f. sp. tritici (Pst) and Blumeria graminis f. sp. tritici (Bgt) infection. The cytogenetic analysis indicated that the introduction of 6RS conferred resistance ability. Compared with wheat parent CN25, 117-6 exhibited excellent agronomic traits in the field. The present study indicated that Qinling rye may carry favorite genes as a potential source for wheat genetic improvement, and 117-6 could be a useful germplasm for wheat breeding programs in the future.
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Duan Y, Luo J, Yang Z, Li G, Tang Z, Fu S. The Physical Location of Stripe Rust Resistance Genes on Chromosome 6 of Rye ( Secale cereale L.) AR106BONE. FRONTIERS IN PLANT SCIENCE 2022; 13:928014. [PMID: 35845635 PMCID: PMC9277549 DOI: 10.3389/fpls.2022.928014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
It was reported that the chromosome 6R of rye (Secale cereale L.) carries stripe rust resistance gene Yr83, and the region with the candidate resistance gene(s) still needs to be narrowed down. This study confirmed that the chromosome 6RLAr derived from rye AR106BONE contains stripe rust resistance gene(s). A wheat-rye T6BS.6RLAr translocation chromosome, a wheat-rye small-segment translocation T6RLAr-6AS.6AL, and three kinds of deleted T6BS.6RLAr translocations, T6BS.6RLAr-1, T6BS.6RLAr-2, and T6BS.6RLAr-3, were identified. Translocations T6BS.6RLAr, T6BS.6RLAr-2, and T6RLAr-6AS.6AL were highly resistant to stripe rust and T6BS.6RLAr-1 and T6BS.6RLAr-3 were highly susceptible. The molecular markers specific to 6RL determined that the three regions of the 6RLAr arm from 732,999,830 bp to the telomere, from 735,010,030 to 848,010,414 bp, and from 848,011,262 bp to the telomere were deleted from T6BS.6RLAr-1, T6BS.6RLAr-2, and T6BS.6RLAr-3, respectively. T6BS.6RLAr-2 and T6RLAr-6AS.6AL contained the segment that was deleted in T6BS.6RLAr-3. Therefore, it can be concluded that about 37 Mb segment from 848,011,262 bp to the telomere carried stripe rust resistance gene(s), and it was smaller than that with the Yr83 gene. Gene annotation indicated that about 37 Mb region contains 43 potential resistance genes, and 42 of them are nucleotide-binding site and leucine-rich repeat (NBS-LRR)-like resistance protein genes. The results in this study narrowed down the size of the region with candidate stripe rust resistance gene(s) on the 6RL arm, and the T6RLAr-6AS.6AL is a promising small-segment translocation for improvement of wheat cultivars.
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Affiliation(s)
- Yanling Duan
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Provincial Key Laboratory for Plant Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Jie Luo
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Provincial Key Laboratory for Plant Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Zujun Yang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Guangrong Li
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Zongxiang Tang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Provincial Key Laboratory for Plant Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Shulan Fu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Provincial Key Laboratory for Plant Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
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Zhou Y, Yang M, Zhao S, Shi H, Li Y, Gong W, Yang J, Wang J, Zou Q, Tao L, Kang Z, Tang R, Guo S, Fu S. Rapid Creation of Interspecific Hybrid Progeny to Broaden Genetic Distance through Double Haploid (DH) Inducer in Brassica napus. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11050695. [PMID: 35270165 PMCID: PMC8912716 DOI: 10.3390/plants11050695] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 05/31/2023]
Abstract
Interspecific hybridization of rapeseed is an important way to innovate breeding resources. This research used Brassica napus and Brassica rapa for artificial synthesis interspecific hybridization of F1. The F1 self-fruiting rate was particularly low. By comparing the fertilization rate and seed setting rate of nine crosses and selfing combinations of interspecific hybrid progeny F1 and control B. napus, the results proved that the genetic stability of egg cells was greater than that of sperm cells, so the F1 could get seed by artificial pollination with other normal pollen. Based on these results, interspecific maternal inbred offspring (induced F1) from egg cells was obtained by emasculation and pollination with the pollen of DH inducer Y3380. It was found through morphological analysis, flow cytometry identification, and meiotic observation of induced F1, the plants had most normal fertile tetraploid and the meiosis was normal. The FISH results showed that the induced F1 were B. napus (2n = 4x = 38, AACC), 20 A and 19 C chromosomes. The results of SNP chip detection and genetic cluster analysis found that the genetic variation between interspecies could be preserved or broadened in the induced F1. The use of DH inducer created special breeding resources for interspecific hybridization and distant hybridization of rapeseed while shortening time, improving efficiency, and providing a new insight into innovate breeding resources.
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Affiliation(s)
- Ying Zhou
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
- College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Meicui Yang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
- College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Shihui Zhao
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
- College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoran Shi
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Yun Li
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Wanzhuo Gong
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Jin Yang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Jisheng Wang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Qiong Zou
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Lanrong Tao
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Zeming Kang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Rong Tang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
| | - Shixing Guo
- College of Agriculture, Sichuan Agricultural University, Chengdu 611130, China
| | - Shaohong Fu
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu Research Branch, National Rapeseed Genetic Improvement Center, Chengdu 611130, China; (Y.Z.); (M.Y.); (S.Z.); (H.S.); (Y.L.); (W.G.); (J.Y.); (J.W.); (Q.Z.); (L.T.); (Z.K.); (R.T.)
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Han G, Yan H, Wang J, Cao L, Liu S, Li X, Zhou Y, Fan J, Li L, An D. Molecular Cytogenetic Identification of a New Wheat-Rye 6R Addition Line and Physical Localization of Its Powdery Mildew Resistance Gene. FRONTIERS IN PLANT SCIENCE 2022; 13:889494. [PMID: 35646041 PMCID: PMC9134188 DOI: 10.3389/fpls.2022.889494] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/13/2022] [Indexed: 05/07/2023]
Abstract
Rye (Secale cereale L.), a naturally cross-pollinating relative of wheat, is a tertiary gene donor and of substantial value in wheat improvement. Wheat powdery mildew is caused by Blumeria graminis f. sp. tritici (Bgt), which seriously affects yield and quality worldwide. Identifying and transferring new, effective resistance genes against powdery mildew from rye is important for wheat breeding. The current study developed a wheat-rye line YT2 resistant to powdery mildew by crossing, backcrossing, and self-pollination for multiple generations between octoploid triticale 09R2-100 and common wheat cultivar Shixin 616. YT2 was confirmed to be a 6R disomic addition and T1RS⋅1BL translocation line by genomic in situ hybridization (GISH), multicolor fluorescence in situ hybridization (mc-FISH), multicolor-GISH (mc-GISH), and molecular marker analyses. Disease responses to different Bgt isolates and genetic analysis showed that the powdery mildew resistance gene of YT2 was derived from the rye chromosome 6R of 09R2-100, which differed from the previously reported Pm genes from rye including Pm20 on 6RL. Resistance phenotype of different translocation lines and deletion lines derived from YT2 combined with newly developed 6RL-specific markers analysis suggested that the powdery mildew resistance gene of YT2 was localized to the region in chromosome 6RL: 890.09-967.51 Mb and flanked by markers XM189 and X4M19, corresponding to the reference genome of Weining rye. Therefore, YT2 could be used as a promising bridging parent for wheat disease resistance improvement.
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Affiliation(s)
- Guohao Han
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Hanwen Yan
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Jing Wang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Lijun Cao
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Shiyu Liu
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
| | - Xiuquan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yilin Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jieru Fan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lihui Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Lihui Li,
| | - Diaoguo An
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, China
- Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
- Diaoguo An,
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Li G, Zhang T, Yu Z, Wang H, Yang E, Yang Z. An efficient Oligo-FISH painting system for revealing chromosome rearrangements and polyploidization in Triticeae. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:978-993. [PMID: 33210785 DOI: 10.1111/tpj.15081] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/25/2020] [Accepted: 11/09/2020] [Indexed: 05/07/2023]
Abstract
A chromosome-specific painting technique has been developed which combines the most recent approaches of the companion disciplines of molecular cytogenetics and genome research. We developed seven oligonucleotide (oligo) pools derivd from single-copy sequences on chromosomes 1 to 7 of barley (Hordeum vulgare L.) and corresponding collinear regions of wheat (Triticum aestivum L.). The seven groups of pooled oligos comprised between 10 986 and 12 496 45-bp monomers, and these then produced stable fluorescence in situ hybridization (FISH) signals on chromosomes of each linkage group of wheat and barley. The pooled oligo probes were applied to high-throughput karyotyping of the chromosomes of other Triticeae species in the genera Secale, Aegilops, Thinopyrum, and Dasypyrum, and the study also extended to some wheat-alien amphiploids and derived lines. We demonstrated that a complete set of whole-chromosome oligo painting probes facilitated the study of inter-species chromosome homologous relationships and visualized non-homologous chromosomal rearrangements in Triticeae species and some wheat-alien species derivatives. When combined with other non-denaturing FISH procedures using tandem-repeat oligos, the newly developed oligo painting techniques provide an efficient tool for the study of chromosome structure, organization, and evolution among any wild Triticeae species with non-sequenced genomes.
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Affiliation(s)
- Guangrong Li
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, China
| | - Tao Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Agricultural College of Yangzhou University, Yangzhou, 225009, China
- Key Laboratory of Plant Functional Genomics of the Ministry of Education/Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, 225009, China
| | - Zhihui Yu
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, China
| | - Hongjin Wang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, China
| | - Ennian Yang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Zujun Yang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic and Technology of China, Chengdu, 611731, China
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Li J, Yu Z, Zhang A, Yin Y, Tang L, Li G, Zhang P, Khan IA, Dundas I, Yang Z. Physical mapping of chromosome 7J and a purple coleoptile gene from Thinopyrum intermedium in the common wheat background. PLANTA 2021; 253:22. [PMID: 33399998 DOI: 10.1007/s00425-020-03552-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
A physical map of Thinopyrum intermedium chromosome 7J was constructed using translocation mapping, and a new seedling purple coleoptile gene was mapped to the bin of FL 0.35-0.63 of 7JS. Thinopyrum intermedium (2n = 6x = 42, JJJsJsStSt), a wild relative of common wheat, harbors numerous beneficial genes for wheat improvement. Previous studies showed that wheat-Th. intermedium partial amphiploid TAF46 and its derived addition line L1 had a purple coleoptile, which was derived from Th. intermedium chromosome 7J. To identify and physically map the purple coleoptile gene, 12 wheat-Th. intermedium 7J translocation lines were analyzed by sequential multicolor fluorescence in situ hybridization (mc-FISH), PCR-based landmark unique gene (PLUG) and intron targeting (IT) markers. A physical map of the 7J chromosome was constructed, consisting of eight chromosomal bins with 89 markers. Seedling evaluation of the coleoptile colors of all tested materials indicated that the purple coleoptile gene was located to the bin with a fraction length (FL) of 0.35-0.63 on chromosome 7JS. Furthermore, based on the syntenic relationships between Th. intermedium and wheat chromosomes, we developed a new chromosome 7J-specific EST-PCR marker from the chromosomal region corresponding to the purple coleoptile gene through the Triticeae multi-omics database. The approach of designing chromosome-specific markers has facilitated fine mapping of the Thinopyrum-specific purple coleoptile gene, and these translocation lines will be valuable for studying the function of the purple coleoptile gene in anthocyanin biosynthesis.
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Affiliation(s)
- Jianbo Li
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Zhihui Yu
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Ahui Zhang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Yan Yin
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Lingrong Tang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Guangrong Li
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China
| | - Peng Zhang
- Plant Breeding Institute, School of Life and Environmental Sciences, The University of Sydney, Cobbitty, NSW, 2570, Australia
| | - Imtiaz Ahmed Khan
- Faculty of Eastern Medicine, Hamdard University, Karachi, 74600, Sindh, Pakistan
| | - Ian Dundas
- School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia.
| | - Zujun Yang
- Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, 611731, Sichuan, China.
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