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Aouani, Mohammed Elarbi (1)
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Badri, Yazid (1)
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Barkley, N.A. (1)
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Bilyeu, K.D. (1)
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Cadle-Davidson, Molly (1)
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Canessa, Paulo (1)
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Casas, E. (1)
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Castillo, R.F. del (1)
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Chappell, A.S. (1)
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Chen, F. (1)
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- Description:
- Includes references
- Author:
- Untalan, P.M. , Pruett, J.H. , Steelman, C.D.
- Subject:
- cattle , Amblyomma americanum , tick infestations , pest resistance , genetic resistance , lymphocyte antigens , major histocompatibility complex , alleles , genetic markers , microsatellite repeats , nucleotide sequences , exons , genetic polymorphism
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- van Berkum, Peter , Badri, Yazid , Elia, Patrick , Aouani, Mohammed Elarbi , Eardly, Bertrand D.
- Subject:
- Rhizobiales , nitrogen-fixing bacteria , soil bacteria , chromosomes , alleles , nodulation , Medicago truncatula , nucleotide sequences
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Barkley, N.A. , Dean, R.E. , Pittman, R.N. , Wang, M.L. , Holbrook, C.C. , Pederson, G.A.
- Subject:
- Arachis hypogaea , peanuts , oil crops , cultivars , genetic variation , microsatellite repeats , sequence analysis , alleles , phylogeny , plant genetics , nucleotide sequences
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- The avirulence gene AVR-Pita of Magnaporthe oryzae determines the efficacy of the resistance gene Pi-ta in rice. The structures of the AVR-Pita alleles in 39 US isolates of M. oryzae were analyzed using polymerase chain reaction. A series of allele-specific primers were developed from the AVR-Pita gene to examine the presence of AVR-Pita. Orthologous alleles of the AVR-Pita gene were amplified from avirulent isolates. Sequence analysis of five alleles revealed three introns at identical positions in the AVR-Pita gene. All five alleles were predicted to encode metalloprotease proteins highly similar to the AVR-Pita protein. In contrast, the same regions of the AVR-Pita alleles were not amplified in the most virulent isolates, and significant variations of DNA sequence at the AVR-Pita allele were verified by Southern blot analysis. A Pot3 transposon was identified in the DNA region encoding the putative protease motif of the AVR-Pita protein from a field isolate B2 collected from a Pi-ta-containing cultivar Banks. These findings show that transposons can contribute to instability of AVR-Pita and is one molecular mechanism for defeating resistance genes in rice cultivar Banks.
- Author:
- Zhou, E.X. , Jia, Y.L. , Singh, P. , Correll, J.C. , Lee, F.N.
- Subject:
- Magnaporthe , plant pathogenic fungi , genes , virulence , alleles , introns , DNA primers , polymerase chain reaction , nucleotide sequences , transposons , pathogenicity , blast disease , Oryza sativa , rice
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- He, Z.H. , Chen, F. , Xia, X.C. , Xia, L.Q. , Zhang, X.Y. , Lillemo, M. , Morris, C.F.
- Subject:
- Triticum aestivum , wheat , seeds , hardness , plant breeding , cultivars , landraces , alleles , agronomic traits , evolution , agricultural history , nucleotide sequences , amino acid sequences , China
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Syring, J. , Castillo, R.F. del , Cronn, R. , Liston, A.
- Subject:
- Pinus , forest trees , tropical forests , threatened species , loci , genetic variation , population genetics , plant morphology , plant taxonomy , Pinus monticola , Pinus strobus , Pinus ayacahuite , nucleotide sequences , alleles , phylogeny , Mexico , Guatemala
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Smith, T.P. , Casas, E.
- Subject:
- cattle , calpain , cysteine proteinases , single nucleotide polymorphism , genetic markers , alleles , quantitative trait loci , genetic variation , animal genetics , beef quality , meat tenderness , amino acid sequences , nucleotide sequences , patents , USDA , United States
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Larrondo, Luis F. , Canessa, Paulo , Vicuña, Rafael , Stewart, Philip , Vanden Wymelenberg, Amber , Cullen, Dan
- Subject:
- Phanerochaete chrysosporium , genes , cytochrome P-450 , hexosyltransferases , alleles , oxidoreductases , retrotransposons , nucleotide sequences , transcription (genetics) , gene expression , repetitive sequences , messenger RNA
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- MEEROW, ALAN W. , NAKAMURA, KYOKO
- Subject:
- Zamia , loci , microsatellite repeats , polymerase chain reaction , DNA primers , alleles , heterozygosity , nucleotide sequences , genetic polymorphism , Florida
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
- Description:
- Includes references
- Author:
- Chappell, A.S. , Bilyeu, K.D.
- Subject:
- Glycine max , soybeans , linolenic acid , mutation , genotype , genetic variation , genetic markers , alleles , genes , nucleotide sequences , nucleotides , frameshift mutation , stop codon , polymerase chain reaction
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2007
