Molecular cytogenetics identification of a wheat - Leymus mollis double disomic addition line with stripe rust resistance.
Genome. 2017 May; 60(5):375-383.G

Abstract

Leymus mollis (Trin.) Pilg. (2n = 4x = 28, NsNsXmXm) possesses a number of valuable genes against biotic and abiotic stress, which could be transferred into common wheat background for wheat improvement. In the present study, we determined the karyotypic constitution of a wheat - L. mollis double disomic addition line, M11003-4-4-1-1, selected from the F5 progeny of a stable wheat - L. mollis derivative M39 (2n = 56) × Triticum aestivum cultivar 7182, by morphological and cytogenetic identification, GISH (genomic in situ hybridization), FISH (fluorescent in situ hybridization), molecular markers analysis, and stripe rust resistance evaluation. Cytological studies demonstrated that M11003-4-4-1-1 had a chromosome karyotype of 2n = 46 with 23 bivalents, while GISH and FISH analysis indicated that this line contained 42 common wheat chromosomes and two pairs of L. mollis chromosomes. DNA markers showed that the alien chromosomes from L. mollis belonged to homoeologous groups 5 and 6. Evaluation of the agronomic traits revealed that M11003-4-4-1-1 was resistant to stripe rust at the adult stage, while the plant height was reduced and the 1000-grain weight was increased significantly. Therefore, the new line M11003-4-4-1-1 could be exploited as an important bridge material in chromosome engineering and wheat breeding.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhang A

State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China. State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China.

MeSH

BasidiomycotaChromosomes, PlantCytogenetic AnalysisDisease ResistanceGenome, PlantHybrid VigorHybridization, GeneticIn Situ HybridizationIn Situ Hybridization, FluorescenceKaryotypePlant BreedingPlant DiseasesPoaceaeTriticum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28177840

Citation

Zhang, Aicen, et al. "Molecular Cytogenetics Identification of a Wheat - Leymus Mollis Double Disomic Addition Line With Stripe Rust Resistance." Genome, vol. 60, no. 5, 2017, pp. 375-383.

Zhang A, Li W, Wang C, et al. Molecular cytogenetics identification of a wheat - Leymus mollis double disomic addition line with stripe rust resistance. Genome. 2017;60(5):375-383.

Zhang, A., Li, W., Wang, C., Yang, X., Chen, C., Zhu, C., Peng, N., Tian, Z., Wang, Y., Zhang, H., Liu, X., & Ji, W. (2017). Molecular cytogenetics identification of a wheat - Leymus mollis double disomic addition line with stripe rust resistance. Genome, 60(5), 375-383. https://doi.org/10.1139/gen-2016-0151

Zhang A, et al. Molecular Cytogenetics Identification of a Wheat - Leymus Mollis Double Disomic Addition Line With Stripe Rust Resistance. Genome. 2017;60(5):375-383. PubMed PMID: 28177840.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Molecular cytogenetics identification of a wheat - Leymus mollis double disomic addition line with stripe rust resistance. AU - Zhang,Aicen, AU - Li,Wanyue, AU - Wang,Changyou, AU - Yang,Xiaofei, AU - Chen,Chunhuan, AU - Zhu,Chen, AU - Peng,Nana, AU - Tian,Zengrong, AU - Wang,Yajuan, AU - Zhang,Hong, AU - Liu,Xinlun, AU - Ji,Wanquan, Y1 - 2016/11/23/ PY - 2017/2/9/pubmed PY - 2018/1/30/medline PY - 2017/2/9/entrez KW - Leymus mollis KW - blé KW - double disomic addition line KW - double lignée d’addition disomique KW - résistance à la rouille jaune KW - stripe rust resistance KW - wheat SP - 375 EP - 383 JF - Genome JO - Genome VL - 60 IS - 5 N2 - Leymus mollis (Trin.) Pilg. (2n = 4x = 28, NsNsXmXm) possesses a number of valuable genes against biotic and abiotic stress, which could be transferred into common wheat background for wheat improvement. In the present study, we determined the karyotypic constitution of a wheat - L. mollis double disomic addition line, M11003-4-4-1-1, selected from the F5 progeny of a stable wheat - L. mollis derivative M39 (2n = 56) × Triticum aestivum cultivar 7182, by morphological and cytogenetic identification, GISH (genomic in situ hybridization), FISH (fluorescent in situ hybridization), molecular markers analysis, and stripe rust resistance evaluation. Cytological studies demonstrated that M11003-4-4-1-1 had a chromosome karyotype of 2n = 46 with 23 bivalents, while GISH and FISH analysis indicated that this line contained 42 common wheat chromosomes and two pairs of L. mollis chromosomes. DNA markers showed that the alien chromosomes from L. mollis belonged to homoeologous groups 5 and 6. Evaluation of the agronomic traits revealed that M11003-4-4-1-1 was resistant to stripe rust at the adult stage, while the plant height was reduced and the 1000-grain weight was increased significantly. Therefore, the new line M11003-4-4-1-1 could be exploited as an important bridge material in chromosome engineering and wheat breeding. SN - 1480-3321 UR - https://www.unboundmedicine.com/medline/citation/28177840/Molecular_cytogenetics_identification_of_a_wheat___Leymus_mollis_double_disomic_addition_line_with_stripe_rust_resistance_ DB - PRIME DP - Unbound Medicine ER -

Tags

Molecular cytogenetics identification of a wheat - Leymus mollis double disomic addition line with stripe rust resistance.Genome. 2017 May; 60(5):375-383.G