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Displaying items 1 - 10 of 13 start over

1. A reassessment of the species concept in Eutypa lata, the causal agent of Eutypa dieback of grapevine

Description:
Includes references
Author:
Rolshausen, P.E. , Mahoney, N.E. , Molyneux, R.J. , Gubler, W.D.
Subject:
Vitis vinifera , grapes , fungal diseases of plants , Eutypa , Eutypa armeniacae , Xylariales , plant pathogenic fungi , pathogenicity , plant taxonomy , descriptions , geographical distribution , fungal anatomy , conidia , phylogeny , internal transcribed spacers , tubulin , genes , genetic variation , mycelium , cell growth , culture filtrates , secondary metabolites
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

2. Characterization of the cystoid nematode Meloidoderita kirjanovae (Nemata: Sphaeronematidae) from southern Italy

Description:
Includes references
Author:
Vovlas, N. , Landa, B.B. , Liebanas, G. , Handoo, Z.A. , Subbotin, S.A. , Castillo, P.
Subject:
Nematoda , plant parasitic nematodes , Mentha aquatica , roots , histopathology , new host records , new geographic records , animal morphology , animal taxonomy , molecular systematics , ribosomal DNA , internal transcribed spacers , nucleotide sequences , phylogeny , Italy
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

3. Genetic and hybridization evidence confirms that a geographic population of Gonatocerus morrilli (Hymenoptera: Mymaridae) from California is a new species: Egg parasitoids of the glassy-winged sharpshooter Homalodisca coagulata (Homoptera: Cicadellidae)

Description:
Includes references
Author:
De Leon, J.H. , Jones, W.A. , Setamou, M. , Morgan, D.J.W.
Subject:
genes , cytochrome-c oxidase , Homalodisca vitripennis , Gonatocerus , new species , population genetics , molecular systematics , mitochondrial DNA , ribosomal DNA , internal transcribed spacers , nucleotide sequences , sequence homology , phylogeny , hybridization , reproductive isolation , Wolbachia pipientis , California , Texas , Florida
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

4. Genetic and Morphological Comparisons of New and Old World Populations of Spalangia Species (Hymenoptera: Pteromalidae)

Description:
Includes references
Author:
Taylor, D.B. , Moon, R. , Gibson, G. , Szalanski, A.
Subject:
Spalangia , molecular genetics , ribosomal DNA , internal transcribed spacers , nucleotide sequences , sequence homology , phylogeny , genetic distance , genetic markers , insect morphology , insect taxonomy , parasitoids
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

5. Molecular Characterization of Fusarium oxysporum and Fusarium commune Isolates from a Conifer Nursery

Description:
Includes references
Author:
Stewart, J.E. , Kim, M.S. , James, R.L. , Dumroese, R.K. , Klopfenstein, N.B.
Subject:
conifers , fungal diseases of plants , Fusarium , Fusarium oxysporum , plant pathogenic fungi , pathogenicity , signs and symptoms (plants) , roots , seedlings , nursery crops , forest nurseries , pathotypes , virulence , genetic variation , amplified fragment length polymorphism , DNA profiling , nucleotide sequences , ribosomal DNA , internal transcribed spacers , phylogeny , diagnostic techniques
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

6. Molecular phylogenetics of the clover genus (Trifolium-Leguminosae)

Description:
Includes references
Author:
Ellison, Nick W. , Steiner, Jeffrey J. , Taylor, Norman L.
Subject:
Trifolium , phylogeny , molecular systematics , plant taxonomy , ribosomal DNA , internal transcribed spacers , chloroplast DNA , allopolyploidy
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

7. Morphologic and genetic characterization of Sarcocystis sp. from the African grey parrot, Psittacus erithacus, from Costa Rica

Description:
Includes references
Author:
Dubey, J.P. , Rosenthal, Benjamin M. , Morales, Juan A. , Alfaro, Alejandro
Subject:
Sarcocystis , sarcocystosis , Psittacus , parrots , sarcocysts , bradyzoites , ultrastructure , ribosomal DNA , internal transcribed spacers , sequence analysis , sequence homology , phylogeny , hosts , Didelphis , opossums , Costa Rica
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

8. Nosema chrysorrhoeae n. sp. (Microsporidia), isolated from browntail moth (Euproctis chrysorrhoea L.) (Lepidoptera, Lymantriidae) in Bulgaria: Characterization and phylogenetic relationships

Description:
Includes references
Author:
Hylis, M. , Pilarska, D.K. , Obornik, M. , Vavra, J. , Solter, L.F. , Weiser, J. , Linde, A. , McManus, M.L.
Subject:
life cycle (organisms) , Nosema , new species , taxonomy , developmental stages , ultrastructure , spores , ribosomal DNA , internal transcribed spacers , nucleotide sequences , molecular systematics , phylogeny , Euproctis chrysorrhoea , microsporidiosis , Bulgaria
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

9. Penicillium species endophytic in coffee plants and ochratoxin A production

Description:
Includes references
Author:
Vega, F.E. , Posada, F. , Peterson, S.W. , Gianfagna, T.J. , Chaves, F.
Subject:
Penicillium , endophytes , internal transcribed spacers , ribosomal DNA , sequence analysis , molecular systematics , phylogeny , Coffea , Coffea arabica , Coffea liberica , Coffea liberica var. dewevrei , Colombia , Hawaii , Maryland
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

10. Phylogenetic relationships and biogeography within the Eurasian clade of Amaryllidaceae based on plastid ndhF and nrDNA ITS sequences: lineage sorting in a reticulate area

Description:
Includes references
Author:
Meerow, A.W. , Francisco-Ortega, J. , Kuhn, D.N. , Schnell, R.J.
Subject:
Liliaceae , phylogeny , plastids , genes , ribosomal DNA , DNA profiling , nucleotide sequences , internal transcribed spacers , genetic variation , Mediterranean region
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006