Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight.

Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Research Abstract Details 

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Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Abstract Text:

Peidu Chen,Wenxuan Liu,Jianhua Yuan,Xiue Wang,Bo Zhou,Suling Wang,Shouzhong Zhang,Yigao Feng,Baojun Yang,Guangxin Liu,Dajun Liu,Lili Qi,Peng Zhang,Bernd Friebe,Bikram S Gill,

Wheat scab (Fusarium Head Blight, FHB) is a destructive disease in the warm and humid wheat-growing areas of the world. Finding diverse sources of FHB resistance is critical for genetic diversity of resistance for wheat breeding programs. Leymus racemosus is a wild perennial relative of wheat and is highly resistant to FHB. Three wheat- L. racemosus disomic addition (DA) lines DA 5 Lr#1, DA 7 Lr#1 and DALr.7 resistant to FHB were used to develop wheat- L.racemosus translocation lines through irradiation and gametocidal gene-induced chromosome breakage. A total of nine wheat-alien translocation lines with wheat scab resistance were identified by chromosome C-banding, GISH, telosomic pairing and RFLP analyses. In line NAU 614, the long arm of 5 Lr#1 was translocated to wheat chromosome 6B. Four lines, NAU 601, NAU 615, NAU 617, and NAU 635, had a part of the short arm of 7 Lr#1 transferred to different wheat chromosomes. Four other lines, NAU 611, NAU 634, NAU 633, and NAU 618, contained translocations involving Leymus chromosome Lr.7 and different wheat chromosomes. The resistance level of the translocation lines with a single alien chromosome segment was higher than the susceptible wheat parent Chinese Spring but lower than the alien resistant parent L. racemosus. At least three resistance genes in L. racemosus were identified. One was located on chromosome Lr.7, and two could be assigned to the long arm of 5 Lr#1 and the short arm of 7 Lr#1.

Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Publishing Authors By Initials

P Chen,W Liu,J Yuan,X Wang,B Zhou,S Wang,S Zhang,Y Feng,B Yang,G Liu,D Liu,L Qi,P Zhang,B Friebe,BS Gill,

For similar plants: plant families and groups: angiosperms: poaceae: triticum research abstracts see: plants: plant families and groups: angiosperms: poaceae: triticum research

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Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: TAG. Theoretical and applied genetics. Theoretisch

VOLUME: 111

Page Numbers: 941-8

Journal Abbreviation: Theor. Appl. Genet.

ISSN: 0040-5752

DAY: 18

MONTH: 10

YEAR: 2005

Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Information

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LANGUAGE: eng

NlmUniqueID: 145600

Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight. Keywords Mesh Terms:

KEYWORDS: Triticum

MESH TERMS: microbiology

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Grant and Affiliation Information for Development and characterization of wheat- Leymus racemosus translocation lines with resistance to Fusarium Head Blight.

AFFILIATION: The National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China. pdchen@njau.edu.cn

Country: Germany

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MEDLINETA: Theor Appl Genet

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