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United States Department of Agriculture

Agricultural Research Service

Ann M Callahan
Appalachian Fruit Research Laboratory
Innovative Fruit Production, Improvement and Protection

Geneticist

Phone: (304) 725-3451 ext. 356
Fax: (304) 725-2340
Room 210
2217 WILTSHIRE ROAD
APPALACHIAN FRUIT RS
KEARNEYSVILLE, WV, 25430-2771

Projects
"FASTRACK" - A REVOLUTIONARY APPROACH TO LONG-GENERATION CYCLE SPECIALTY CROP BREEDING - UNIVERSITY OF CALIFORNIA
General Cooperative Agreement (A)
  Accession Number: 418641
"FASTRACK" - A REVOLUTIONARY APPROACH TO LONG-GENERATION CYCLE SPECIALTY CROP BREEDING - CLEMSON UNIVERSITY
General Cooperative Agreement (A)
  Accession Number: 418746
"FASTRACK" - A REVOLUTIONARY APPROACH TO LONG-GENERATION CYCLE SPECIALTY CROP BREEDING - PENNSYLVANIA STATE UNIVERSITY
General Cooperative Agreement (A)
  Accession Number: 418750
Genetic Improvement of Fruit Crops through Functional Genomics and Breeding
Appropriated (D)
  Accession Number: 425434
IMPROVING DISEASE RESISTANCE, FRUIT QUALITY, AND GROWTH HABIT OF TEMPERATE FRUIT CROPS THROUGH GENETIC ENGINEERING
Nonfunded Cooperative Agreement (N)
  Accession Number: 418799
INTERCONTINENTAL AND TEMPORAL RESEARCH STUDIES ON TRANSGENE ENGINEERED IN PLUMS
Nonfunded Cooperative Agreement (N)
  Accession Number: 421278
DATA COLLECTION TO SUPPORT INTERNATIONAL REGULATORY APPROVALS FOR 'HONEYSWEET' PLUMS
Specific Cooperative Agreement (S)
  Accession Number: 417995

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Tree fruit breeding for the 21st Century - (Proceedings)
Scorza, R., Callahan, A.M., Dardick, C.D., Bell, R.L., Liu, Z., Srinivasan, C., Hollender, C.A., Vann, C.D., Ravelonandro, M. 2013. Tree fruit breeding for the 21st Century. Aspects of Applied Biology. 119:1-12.
Spatial and temporal assessment of pollen- and seed-mediated gene flow from genetically engineered plum Prunus domestica - (Peer Reviewed Journal) - (13-Aug-13)
Protecting trees against virus diseases in the 21st century: genetic engineering of Plum pox virus resistance - from concept to product - (Review Article)
Scorza, R., Callahan, A.M., Dardick, C.D., Ravelonandro, M., Polak, J., Malinowski, T., Zagrai, I., Cambra, M., Kamenova, I. 2013. Protecting trees against virus diseases in the 21st century: genetic engineering of Plum pox virus resistance - from concept to product. Plant Cell Tissue And Organ Culture. 115:1-12.
'HoneySweet' plum - a valuable genetically engineered fruit-tree cultivar and germplasm resource - (Peer Reviewed Journal)
Ravelonandro, M., Scorza, R., Polak, J., Callahan, A.M., Krska, B., Kundu, J., Briard, P. 2013. 'HoneySweet' plum - a valuable genetically engineered fruit-tree cultivar and germplasm resource. Food and Nutrition Sciences. 4:45-49.
DNA methylation/demethylation programming during peach flower bud dormancy release, development and blooming - (Abstract Only)
Zhu, H., Chen, P., Xia, H., Callahan, A.M., Pellegrini, M., Liu, Z. 2013. DNA methylation/demethylation programming during peach flower bud dormancy release, development and blooming. Plant and Animal Genome Conference. Paper No. 9983.
Biotechnological advances in the genetic improvement of Prunus domestica - (Proceedings)
Scorza, R., Callahan, A.M., Dardick, C.D., Srinivasan, C., Dejong, T., Abbott, A., Ravelonandro, M. 2013. Biotechnological advances in the genetic improvement of Prunus domestica. Acta Horticulture Proceedings. 985:111-117.
Stoneless plums-from Luther Burbank to the present - (Peer Reviewed Journal)
Callahan, A.M., Dardick, C.D., Scorza, R. 2013. Stoneless plums-from Luther Burbank to the present. Acta Horticulturae. 985:71-75.
Identification of peach (Prunus persica) miRNAs and their targets by deep sequencing and degradome analysis - (Peer Reviewed Journal)
Zhu, H., Xia, R., Dardick, C.D., Callahan, A.M., An, Y., Liu, Z. 2012. Identification of peach (Prunus persica) miRNAs and their targets by deep sequencing and degradome analysis. Biomed Central (BMC) Plant Biology. DOI:10.1186/1471-2229-12-149.
Advances in the genetic improvement of Prunus domestica utilizing genetic engineering - (Abstract Only)
Scorza, R., Callahan, A.M., Dardick, C.D., Srinivasan, C., Raines, C.D., Delong, T., Castro, S., Abbott, A., Ravelonandro, M., Cambra, M., Zagrai, I., Polak, J., Malinowski, T. 2012. Advances in the genetic improvement of Prunus domestica utilizing genetic engineering. [abstract]. Xth International Symposium Plum & Prune Genetics. Paper No. 97.
'FasTrack' - a revolutionary approach to long-generation cycle specialty crop breeding - (Abstract Only)
Scorza, R., Dardick, C.D., Callahan, A.M., Srinivasan, C., Delong, T., Harper, J., Raines, C.D., Castro, S. 2012. 'FasTrack' - a revolutionary approach to long-generation cycle specialty crop breeding. [abstract]. Xth International Symposium Plum & Prune Genetics. Paper No. 101.
Stoneless plums - from Luther Burbank to the present - (Abstract Only)
Callahan, A.M., Dardick, C.D., Scorza, R. 2012. Stoneless plums - from Luther Burbank to the present. Xth International Symposium on Plum and Prune Genetics, Breeding and Technology. p. 45.
Transcriptomics of shading-induced and NAA-induced abscission in apple (Malus domestica) reveals a shared pathway involving reduced photosynthesis, alterations in carbohydrate transport and signaling and hormone crosstalk - (Peer Reviewed Journal)
Zu, H., Dardick, C.D., Beers, E.P., Callahan, A.M., Xia, R., Yuan, R. 2011. Transcriptomics of shading-induced and NAA-induced abscission in apple (Malus domestica) reveals a shared pathway involving reduced photosynthesis, alterations in carbohydrate transport and signaling and hormone crosstalk. Biomed Central (BMC) Plant Biology. 11:138.
'HoneySweet' - a transgenic plum pox virus resistant plum - from laboratory and experimental field plots to regulatory approval - (Abstract Only)
Scorza, R., Callahan, A.M., Ravelonandro, M., Cambra, M., Zagrai, I., Polak, J., Malinowski, T. 2011. 'HoneySweet' - a transgenic plum pox virus resistant plum - from laboratory and experimental field plots to regulatory approval [abstract]. International Science for Horticultural Science Genetically Modified Organisms in Horticulture Symposium. p. 45.
Gene expression and hormone levels in different growth habits of peach and apple - (Proceedings)
Tworkoski, T., Webb, K.K., Callahan, A.M., Scorza, R. 2012. Gene expression and hormone levels in different growth habits of peach and apple. In: Proceedings of the Plant Growth Regulator Society of America, July 24-27, 2011, Chicago, Illinois. p. 145.
Pitless plum: reality or fantasy - (Other)
Callahan, A.M., Dardick, C.D., Scorza, R. 2011. Pitless plum: reality or fantasy. Chronica Horticulturae. 51:18-22.
Development and deregulation of the plum pox virus resistant transgenic plum 'HoneySweet' - (Book / Chapter) - (29-Apr-11)
Reducing the harmful impacts of plum pox virus through the use of biotechnology - (Book / Chapter)
Kamenova, I., Scorza, R., Ravelonandro, M., Callahan, A.M., Paunovic, S., Zagrai, I., Dorokhov, D., Blume, Y. 2010. Reducing the harmful impacts of plum pox virus through the use of biotechnology. In: Golikov, A., Atanassov, A., editors. Reducing Consensus Document on Environmental Risk and Economic Assessment of Genetically Modified Crops, Case Studies: Soybean, Maize, Sugar Beet, Reducing the Harmful Impacts of Plum Pox Virus through the Use of Biotechnology. Sofia, Bulgaria: Infoprint Pleven Press. p. 127-150.
Utilization of next generation sequencing for analyzing transgenic insertions in plum - (Abstract Only)
Callahan, A.M., Dardick, C.D., Scorza, R. 2010. Utilization of next generation sequencing for analyzing transgenic insertions in plum. HortScience. 45(8):56.
A young bud's fruitful journey: The spatial and temporal expression of transcription factors controlling early fruit determination and differentiation in stone fruit - (Abstract Only)
Lalli, D., Dardick, C.D., Scorza, R., Callahan, A.M. 2010. A young bud's fruitful journey: The spatial and temporal expression of transcription factors controlling early fruit determination and differentiation in stone fruit. Plant Biology Annual Meeting. p. 4017.
Expression of the poplar Flowering Locus T1 (FT1) gene reduces the generation time in plum (Prunus domestica L.) - (Abstract Only)
Srinivasan, C., Callahan, A.M., Dardick, C.D., Scorza, R. 2010. Expression of the poplar Flowering Locus T1 (FT1) gene reduces the generation time in plum (Prunus domestica L.) [abstract]. International Horticultural Congress. p. 103.
Delaying flowering in short-day strawberry transplants with photoselective nets Reprint Icon - (Peer Reviewed Journal)
Takeda, F., Glenn, D.M., Callahan, A.M., Slovin, J.P. 2010. Delaying flowering in short-day strawberry transplants with photoselective nets. International Journal of Fruit Science. 10:134-142.
Hairpin plum pox virus coat protein (hpPPV-CP) structure in 'HoneySweet' C5 plum provides PPV resistance when genetically engineered into plum (Prunus domestica) seedlings - (Proceedings)
Scorza, R., Georgi, L., Callahan, A.M., Petri, C., Hily, J., Dardick, C.D., Damsteegt, V.D., Ravelonandro, M. 2010. Hairpin plum pox virus coat protein (hpPPV-CP) structure in 'HoneySweet' C5 plum provides PPV resistance when genetically engineered into plum (Prunus domestica) seedlings. International Conference on Graft Transmissible Diseases of Fruit Crops.
The hairpin structure of the Plum pox virus (PPV) coat protein gene in 'HoneySweet' C5 plum is responsible for PPV resistance - (Abstract Only)
Scorza, R., Georgi, L., Callahan, A.M., Petri, C., Hily, J., Dardick, C.D., Damsteegt, V.D., Ravelonandro, M. 2009. The hairpin structure of the Plum pox virus (PPV) coat protein gene in 'HoneySweet' C5 plum is responsible for PPV resistance. International Conference on Graft Transmissible Diseases of Fruit Crops. p. 39-40.
Characterization of 'Stoneless': A naturally occurring, partially stoneless plum cultivar - (Peer Reviewed Journal)
Callahan, A.M., Scorza, R., Dardick, C.D. 2009. Characterization of 'Stoneless': A naturally occurring, partially stoneless plum cultivar. Journal of the American Society for Horticultural Science. 134:120-125.
Plums - (Book / Chapter)
Callahan, A.M. 2008. Plums. In: Kole, C., Hall, T.C., editors. Compendium of Transgenic Crop Plants. Blackwell Publishing. p. 93-119.
The development of 'HoneySweet' - a transgenic Plum pox virus (PPV) resistant plum and the application of intron-hairpin (ihp) RNA technology for PPV resistance in stone fruits - (Abstract Only)
Scorza, R., Hily, J., Callahan, A.M., Damsteegt, V.D., Ravelonandro, M. 2008. The development of 'HoneySweet' - a transgenic Plum pox virus (PPV) resistant plum and the application of intron-hairpin (ihp) RNA technology for PPV resistance in stone fruits. HortScience. 4:1069.
Gene expression profiling of peach fruit during stone development - (Abstract Only)
Callahan, A.M., Dardick, C.D., Chiozzotto, R., Schaffer, R.J., Piagnani, M., Scorza, R. 2008. Gene expression profiling of peach fruit during stone development [abstract]. Plant and Animal Genome Conference. Paper No. 716. p. 297.
A minimal peach type II chlorophyll a/b-binding protein promoter retains tissue-specificity and light regulation in tomato - (Peer Reviewed Journal)
Bassett, C.L., Callahan, A.M., Artlip, T.S., Scorza, R., Srinivasan, C. 2007. A minimal peach type II chlorophyll a/b-binding protein promoter retains tissue-specificity and light regulation in tomato. BioMed Central (BMC)Biotechnology. 7:47.
Effects of a Peach Antisense Acc Oxidase Gene on Plum Fruit Quality - (Proceedings)
Callahan, A.M., Scorza, R. 2007. Effects of a peach antisense acc oxidase gene on plum fruit quality. Acta Horticulturae. 738:567-573.
Deregulation of plum pox resistant transgenic plum 'Honeysweet' - (Proceedings)
Scorza, R., Hily, J., Callahan, A.M., Malinowski, T., Cambra, M., Capote, N., Zagrai, I., Damsteegt, V.D., Briard, P., Ravelonandro, M. 2007. Deregulation of plum pox resistant transgenic plum 'Honeysweet'. Acta Horticulturae. 738:669-673.
Physical structure of an endopolygalacturonase locus in peach - (Abstract Only)
Callahan, A.M., Zhebentyayeva, T.N., Peace, C.P. 2007. Physical structure of an endopolygalacturonase locus in peach. Plant and Animal Genome Conference, January 13-17, 2007, San Diego, California. 220 p.
From Bac to Trait and Back: Exploitation Structural and Functional Geneomics Databases for Gene Identification in Peach - (Proceedings) - (03-Feb-06)
'honeysweet' - a Transgenic Plum Pox Virus Resistant Plum - Development, Field Testing, and Regulatory Issues. - (Abstract Only)
Scorza, R., Gonsalves, D., et. al. 'Honeysweet' - A Transgenic Plum Pox Virus Resistant Plum - Development, Field Testing, and Regulatory Issues. International Symposium on Biotechnology of Temperate Fruit Crops and Tropical Species. Abstract. October 10-14, 2005 in Daytona Beach, Florida, USA.
Effects of a Peach Antisense Acc Oxidase Gene on Plum Fruit Quality - (Abstract Only)
Callahan, A.M., Scorza, R. 2005. Effects of a peach antisense acc oxidase gene on plum fruit quality. International Symposium on Biotechnology of Temperate Fruit Crops and Tropical Species, Daytona Beach, FL, October 10-14, 2006.
Candidate Gene Data Base and Transcript Map for Peach: a Model Species for Fruit Trees - (Peer Reviewed Journal)
Horn, R., Lecouls, A., Callahan, A.M., Dandekar, A., Garay, L., Mccord, P., Howad, W., Chan, H., Verde, I., Ramaswamy, K., Main, D., Jung, S., Georgi, L., Forrest, S., Mook, J., Zhebentyayeva, T., Yu, Y., Kim, H., Jesudurai, C., Sosinski, B., Arus, P., Baird, V., Parfitt, D., Reighard, G., Scorza, R., Tomkins, J., Wing, R., Abbott, A. 2005. Candidate gene data base and transcript map for peach: a model species for fruit trees. Theoretical and Applied Genetics. 110:1419-1428.
Dissecting the Endopolygalacturonase Locus of Peach - (Proceedings)
Callahan, A.M., Scorza, R., Bassett, C.L. 2004. Dissecting the endopolygalacturonase locus of peach. Proceedings of the 2nd International Rosaceae Genome Mapping Conference, Clemson SC, May 2004, pg. 5.
Transgenic Research at the Appalachian Fruit Research Station - (Proceedings)
Callahan, A.M. 2004. Transgenic research at the Appalachian Fruit Research Station. In: Proceedings of the International Rosaceae Genome Mapping Conference, May 22-24, 2004, Clemson, South Carolina.
Developmental Regulation of Peach Acc Oxidase Promoter-Gus Fusions in Transgenic Tomato Fruits - (Peer Reviewed Journal)
Moon, H., Callahan, A.M. 2004. Developmental regulation of peach Acc oxidase promoter-Gus fusions in transgenic tomato fruits. Journal of Experimental Botany, June 18, 2004.
Endopolygalacturonase Genes in Melting and Nonmelting Peach Cultivars - (Peer Reviewed Journal)
Callahan, A.M., Scorza, R., Bassett, C.L., Nickerson, M., Abeles, F. 2004. Endopolygalacturonase genes in melting and nonmelting peach cultivars. Functional Plant Biology 31:159-168 2004.
Breeding for Fruit Quality - (Proceedings)
Callahan, A.M. 2003. Breeding for fruit quality. Acta Horticulturae 622:295-302.
Tissue Specific Experssion of Gus in Tomato under the Control of a Type II Chlorophyll A/b Binding Protein Promoter from Peach - (Abstract Only)
Bassett, C.L., Callahan, A.M., Scorza, R., Srinivasan, C. 2003. Tissue specific experssion of gus in tomato under the control of a type ii chlorophyll a/b binding protein promoter from peach. Hortscience 38 2003.
The Effect of Cold-Induced Dormancy on Ptgs in Plum Clones Containing the Plum Pox Coat Protein Gene - (Abstract Only)
Callahan, A.M., Scorza, R., Levy, L., Damsteegt, V.D., Ravelonandro, M. 2002. The effect of cold-induced dormancy on PTGS in plum clones containing the plum pox coat protein gene. International Biotechnology Congress, 10th International Association of Plant Tissue Culture & Biotechnology Congress Proceedings, P-1261, pp 99.
The Effect of Cold-Induced Dormancy on Ptgs in Plum Clones Containing the Plum Pox Coat Protein Gene - (Abstract Only)
Callahan, A.M., Scorza, R., Levy, L., Damsteegt, V.D., Ravelonandro, M. 2002. The effect of cold-induced dormancy on PTGS in plum clones containing the plum pox coat protein gene. International Biotechnology Congress, 10th International Association of Plant Tissue Culture & Biotechnology Congress Proceedings, P-1261, pp 99.
The Effect of Cold-Induced Dormancy on Ptgs in Plum Clones Containing the Plum Pox Coat Protein Gene - (Abstract Only)
Callahan, A.M., Scorza, R., Levy, L., Damsteegt, V.D., Ravelonandro, M. 2002. The effect of cold-induced dormancy on PTGS in plum clones containing the plum pox coat protein gene. International Biotechnology Congress, 10th International Association of Plant Tissue Culture & Biotechnology Congress Proceedings, P-1261, pp 99.
The Effect of Cold-Induced Dormancy on Ptgs in Plum Clones Containing the Plum Pox Coat Protein Gene - (Abstract Only)
Callahan, A.M., Scorza, R., Levy, L., Damsteegt, V.D., Ravelonandro, M. 2002. The effect of cold-induced dormancy on PTGS in plum clones containing the plum pox coat protein gene. International Biotechnology Congress, 10th International Association of Plant Tissue Culture & Biotechnology Congress Proceedings, P-1261, pp 99.
Induction of Chitinase B-1,3-Glucanase and Phenylalanine Ammonia Lyase in Peach Fruit by Uv-C Treatment - (Peer Reviewed Journal)
El Ghaouth, A., Wilson, C.L., Callahan, A.M. 2003. Induction of chitinase b-1,3-glucanase and phenylalanine ammonia lyase in peach fruit by uv-c treatment. Phytopathology, Vol. 93:349-355.
Characterization of a Type II Chlorophyll A/b-Binding Protein Gene(lhcb2*pp1) in Peach:ii. Mrna Abundance in Developing Leaves Exposed to Sunor Shade in 'loring' - (Peer Reviewed Journal)
BASSETT, C.L., CALLAHAN, A.M. CHARACTERIZATION OF A TYPE II CHLOROPHYLL A/B-BINDING PROTEIN GENE(LHCB2*PP1) IN PEACH:II. MRNA ABUNDANCE IN DEVELOPING LEAVES EXPOSED TO SUNOR SHADE IN 'LORING'. TREE PHYSIOLOGY. Vol. 23, pgs. 473-480 April 2003.
Breeding for Fruit Quality - (Abstract Only)
Callahan, A.M. 2002. Breeding for fruit quality. Abstract of International Horticultural Congress, XXVI International Hort Congress Proceedings, S12-075, pg S2.
Characterization of the Peach Homologue of the Ethylene Receptor Ppetr1, Reveals Some Unusual Features Regarding Transcript Processing - (Peer Reviewed Journal)
Bassett, C.L., Artlip, T.S., Callahan, A.M. Characterization of the peach homologue of the ethylene receptor ppetr1, reveals some unusual features regarding transcript processing. Planta 215:679-688, 2002.
Developmental Regulation of Peach Acc Oxidase-Gus Fusions in Transgenic Tomato Fruits - (Abstract Only)
Moon, H., Callahan, A.M. 2002. Developmental regulation of peach ACC oxidase-GUS fusions in transgenic tomato fruits. International Biotechnology Congress. 10th International Association of Plant & Tissue Culture Biotechnology Congress Proceedings; P-1077, pg S2.
Developmental Regulation of Peach Acc Oxidase-Gus Fusions in Transgenic Tomato Fruits - (Abstract Only)
Moon, H., Callahan, A.M. 2002. Developmental regulation of peach ACC oxidase-GUS fusions in transgenic tomato fruits. International Biotechnology Congress. 10th International Association of Plant & Tissue Culture Biotechnology Congress Proceedings; P-1077, pg S2.
Developmental Regulation of Peach Acc Oxidase-Gus Fusions in Transgenic Tomato Fruits - (Abstract Only)
Moon, H., Callahan, A.M. 2002. Developmental regulation of peach ACC oxidase-GUS fusions in transgenic tomato fruits. International Biotechnology Congress. 10th International Association of Plant & Tissue Culture Biotechnology Congress Proceedings; P-1077, pg S2.
Developmental Regulation of Peach Acc Oxidase-Gus Fusions in Transgenic Tomato Fruits - (Abstract Only)
Moon, H., Callahan, A.M. 2002. Developmental regulation of peach ACC oxidase-GUS fusions in transgenic tomato fruits. International Biotechnology Congress. 10th International Association of Plant & Tissue Culture Biotechnology Congress Proceedings; P-1077, pg S2.
Studies of Plum Pox Virus Resistance in Transgenic Plum C5 and Its Progeny - (Abstract Only)
Scorza, R., Ravelonandro, M., Callahan, A.M., Malinowski, T., Damsteegt, V.D., Levy, L. 2002. Studies of plum pox virus resistance in transgenic plum C5 and its progeny. International Biotechnology Congress, 10th IAPTC&B Congress Proceedings, June 2002, P-1033, p 41.
Resistance to Plum Pox Potyvirus in a Trangenic Woody Perennial Fruit Tree, European Plum (Prunus Domestica L.) Results from Post-Transcriptional Gene Silencing - (Proceedings)
Scorza, R., Callahan, A.M., Levy, L., Damsteegt, V.D., Ravelonandro, M. 2001. Resistance to plum pox potyvirus in a trangenic woody perennial fruit tree, European plum (Prunus domestica L.) results from post-transcriptional gene silencing. Acta Horticulturae 550:425-430.
Analysis of a Peach Acc Oxidase Promoter by Transient Expression of the Promoter - Gus Fusions Via Particle Bombardment of Fruit Tissues - (Abstract Only)
Moon, H., Srinivasan, C., Scorza, R., Callahan, A.M. 2001. Analysis of a peach acc oxidase promoter by transient expression of the promoter - gus fusions via particle bombardment of fruit tissues. American Society of Plant Physiologists Meeting.
Transgenic Fruit Trees As a Resistance Strategy for Virus Epidemics: the Sharka Model. - (Peer Reviewed Journal) - (01-Dec-00)
Genetic Linkage Mapping in Peach Using Morphological, Rflp and Rapd Markers - (Peer Reviewed Journal) - (01-May-95)
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Last Modified: 4/16/2014