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Molecular cytological characterization of two novel durum--Thinopyrum intermedium partial amphiploids with resistance to leaf rust, stem rust and Fusarium head blight.
Hereditas. 2013 Feb; 150(1):10-6.H

Abstract

Thinopyrum intermedium, a wild relative of wheat, is an excellent source of disease resistance. Two novel partial amphiploids, 08-47-50 and 08-53-55 (2n = 6x = 42), were developed from wide crosses between durum wheat and Th. intermedium. Meiotic analysis showed that pollen mother cells of the two partial amphiploids formed an average 20.49 bivalents for 08-47-50 and 20.67 bivalents for 08-53-55, indicating that they are basically cytologically stable. GISH analysis revealed that the two partial amphiploids carried different chromosome compositions. 08-47-50 had fourteen chromosomes from Th. intermedium and its alien chromosomes included six St-, four E(e) - and four E(e)-St translocated chromosomes, whereas 08-53-55 had four St- and ten E(e)-St translocated chromosomes. Fungal disease evaluation indicated that both partial amphiploids had a high level of resistance to FHB, leaf rust and stem rust race Ug99. These two novel partial amphiploids with multiple disease resistance could be used as a new source of multiple disease resistance in bread wheat and durum wheat breeding programs.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zeng J
Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada.
Cao W
No affiliation info available
Fedak G
No affiliation info available
Sun S
No affiliation info available
McCallum B
No affiliation info available
Fetch T
No affiliation info available
Xue A
No affiliation info available
Zhou Y
No affiliation info available

MeSH

Chromosomes, PlantDisease ResistanceIn Situ Hybridization, FluorescenceKaryotypeMiosisPhenotypePlant DiseasesPlant LeavesPlant StemsTriticum

Pub Type(s)

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

Language

eng

PubMed ID

23489247

Citation

Zeng, J, et al. "Molecular Cytological Characterization of Two Novel durum--Thinopyrum Intermedium Partial Amphiploids With Resistance to Leaf Rust, Stem Rust and Fusarium Head Blight." Hereditas, vol. 150, no. 1, 2013, pp. 10-6.
Zeng J, Cao W, Fedak G, et al. Molecular cytological characterization of two novel durum--Thinopyrum intermedium partial amphiploids with resistance to leaf rust, stem rust and Fusarium head blight. Hereditas. 2013;150(1):10-6.
Zeng, J., Cao, W., Fedak, G., Sun, S., McCallum, B., Fetch, T., Xue, A., & Zhou, Y. (2013). Molecular cytological characterization of two novel durum--Thinopyrum intermedium partial amphiploids with resistance to leaf rust, stem rust and Fusarium head blight. Hereditas, 150(1), 10-6. https://doi.org/10.1111/j.1601-5223.2012.02262.x
Zeng J, et al. Molecular Cytological Characterization of Two Novel durum--Thinopyrum Intermedium Partial Amphiploids With Resistance to Leaf Rust, Stem Rust and Fusarium Head Blight. Hereditas. 2013;150(1):10-6. PubMed PMID: 23489247.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Molecular cytological characterization of two novel durum--Thinopyrum intermedium partial amphiploids with resistance to leaf rust, stem rust and Fusarium head blight. AU - Zeng,J, AU - Cao,W, AU - Fedak,G, AU - Sun,S, AU - McCallum,B, AU - Fetch,T, AU - Xue,A, AU - Zhou,Y, Y1 - 2013/02/21/ PY - 2013/3/16/entrez PY - 2013/3/16/pubmed PY - 2013/10/23/medline SP - 10 EP - 6 JF - Hereditas JO - Hereditas VL - 150 IS - 1 N2 - Thinopyrum intermedium, a wild relative of wheat, is an excellent source of disease resistance. Two novel partial amphiploids, 08-47-50 and 08-53-55 (2n = 6x = 42), were developed from wide crosses between durum wheat and Th. intermedium. Meiotic analysis showed that pollen mother cells of the two partial amphiploids formed an average 20.49 bivalents for 08-47-50 and 20.67 bivalents for 08-53-55, indicating that they are basically cytologically stable. GISH analysis revealed that the two partial amphiploids carried different chromosome compositions. 08-47-50 had fourteen chromosomes from Th. intermedium and its alien chromosomes included six St-, four E(e) - and four E(e)-St translocated chromosomes, whereas 08-53-55 had four St- and ten E(e)-St translocated chromosomes. Fungal disease evaluation indicated that both partial amphiploids had a high level of resistance to FHB, leaf rust and stem rust race Ug99. These two novel partial amphiploids with multiple disease resistance could be used as a new source of multiple disease resistance in bread wheat and durum wheat breeding programs. SN - 1601-5223 UR - https://www.unboundmedicine.com/medline/citation/23489247/Molecular_cytological_characterization_of_two_novel_durum__Thinopyrum_intermedium_partial_amphiploids_with_resistance_to_leaf_rust_stem_rust_and_Fusarium_head_blight_ L2 - https://doi.org/10.1111/j.1601-5223.2012.02262.x DB - PRIME DP - Unbound Medicine ER -