Skip to main content
ARS Home » Southeast Area » Charleston, South Carolina » Vegetable Research » People & Locations » Phillip Wadl

Phillip Wadl (PhD)
Vegetable Research
Research Geneticist (Plants)

Phone: (843) 402-5388
Fax: (843) 573-4715

2700 SAVANNAH HIGHWAY
CHARLESTON, SC 249145334
Projects
Sustainable Approaches for Pest Management in Vegetable Crops
In-House Appropriated (D)
  Accession Number: 439227
Developing Resources to Manage the Exotic Root-knot Nematode Meloidogyne enterolobii
Non-Assistance Cooperative Agreement (S)
  Accession Number: 435211

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
In vitro safening of bentazon by melatonin in sweetpotato - (Peer Reviewed Journal)
Genetic diversity and conservation status of Helianthus verticillatus, an endangered sunflower of the southern United States Reprint Icon - (Peer Reviewed Journal)
Edwards, T.P., Trigiano, R.N., Ownley, B.O., Windham, A.S., Wyman, C.R., Wadl, P.A., Hadziabdic, D. 2020. Conservation efforts of Helianthus verticillatus: Fine scale genetic characterization of this rare species. Heredity. 11:410. https://doi.org/10.3389/fgene.2020.00410.
A hydroponics assay distinguishes between S-metolachlor tolerant and sensitive sweetpotato cultivars Reprint Icon - (Peer Reviewed Journal)
Cutulle, M.A., Campbell, T.H., Farfan, M., Wadl, P.A. 2020. A hydroponics assay distinguishes between S-metolachlor tolerant and sensitive sweetpotato cultivars. HortScience. https://doi.org/10.21273/HORTSCI14936-20.
Evaluation of the USDA sweetpotato germplasm collection for tolerance to the herbicide clomazone Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Cutulle, M.A., Harrison Jr, H.F., Jackson, M.D. 2020. Evaluation of the USDA sweetpotato germplasm collection for tolerance to the herbicide clomazone. Genetic Resources and Crop Evolution. 67(5):1107-1113. https://doi.org/10.1007/s10722-020-00921-8.
Development and characterization of microsatellites from the sweetpotato weevil, Cylas formicarius elegantulus Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Trigiano, R.N., Boggess, S., Harris-Shultz, K.R., Williams III, L.H., Mcquate, G.T. 2020. Development and characterization of microsatellites from the sweetpotato weevil, Cylas formicarius elegantulus. Journal of Applied Entomology. 144(4):335-340. https://doi.org/10.1111/jen.12738.
Phenotypic variation in leaf morphology of the USDA, ARS sweetpotato (Ipomoea batatas) germplasm collection Reprint Icon - (Peer Reviewed Journal)
Jackson, M., Harrison Jr, H.F., Jarret, R.L., Wadl, P.A. 2020. Phenotypic variation in leaf morphology of the USDA, ARS sweetpotato (Ipomoea batatas) germplasm collection. HortScience. 55(4):465-475. https://doi.org/10.21273/HORTSCI14703-19.
Genetic diversity and population structure of the USDA sweetpotato (Ipomoea batatas) germplasm collection - (Abstract Only)
Multipartite interactions involving sweetpotato and its leaf microbiome - (Abstract Only)
Development of a DNA isolation method and microsatellites from the sweetpotato weevil (Cylas formicarius elegantulus) and characterization of genetic diversity - (Abstract Only)
Characterization of genetic diversity for the USDA sweetpotato (Ipomoea batatas) germplasm collection - (Abstract Only)
Genome wide association study in sugar profile of sweetpotato - (Abstract Only)
Low genetic diversity suggests the recent introduction of dogwood powdery mildew to North America Reprint Icon - (Peer Reviewed Journal)
Wyman, C.R., Hadziabdic, D., Boggess, S., Rinehart, T.A., Windham, A.S., Wadl, P.A., Trigiano, R.N. 2019. Low genetic diversity suggests the recent introduction of dogwood powdery mildew to North America. Plant Disease. https://doi.org/10.1094/PDIS-01-19-0051-RE.
Phenotypic analysis of leaf colours from the USDA, ARS sweetpotato (Ipomoea batatas) germplasm collection Reprint Icon - (Peer Reviewed Journal)
Jackson, D., Harrison, H.F., Jarret, R.L., Wadl, P.A. 2019. Phenotypic analysis of leaf colours from the USDA, ARS sweetpotato (Ipomoea batatas) germplasm collection. Plant Genetic Resources. https://doi.org/10.1017/S1479262119000042.
Sweetpotato Genetic Resources – Today and Tomorrow ()
Jarret, R.L., N. Anglin, D. Ellis, A. Villordon, P. Wadll and M. Jackson. 2019. Sweetpotato Genetic Resources: Today and Tomorrow. Burleigh Dodds, Cambridge, UK. ID 9781786764348. p. 1-52.
Method for DNA isolation from sweetpotato weevil collected in pheromone-baited traps Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Williams III, L.H., Harris-Shultz, K.R., McQuate, G.T. 2019. Method for DNA isolation from sweetpotato weevil collected in pheromone-baited traps. Journal of Economic Entomology. 112:1001-1003. https://doi.org/10.1093/jee/toy390.
Context-specific genomic selection strategies outperform phenotypic selection for soybean quantitative traits in the progeny row stage Reprint Icon - (Peer Reviewed Journal)
Smallwood, C., Saxton, A., Gillman, J.D., Bhandari, H., Wadl, P.A., Fallen, B., Hyten, D., Song, Q., Pantalone, V. 2019. Context-specific genomic selection strategies outperform phenotypic selection for soybean quantitative traits in the progeny row stage. Crop Science. 59(1):54-67. https://doi.org/10.2135/cropsci2018.03.0197.
Development of genomic resources for the powdery mildew, Erysiphe pulchra Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Mack, B.M., Beltz, S.B., Moore, G.G., Baird, R.E., Rinehart, T.A., Molnar, T.J., Staton, M.E., Hadziabdic, D., Trigiano, R.N. 2019. Development of genomic resources for the powdery mildew, Erysiphe pulchra. Plant Disease. 103:804-807. https://doi.org/10.1094/PDIS-05-18-0719-A.
A sugarcane aphid 'Super-Clone' predominates on sorghum and johnsongrass from four US states Reprint Icon - (Peer Reviewed Journal)
Harris-Shultz, K.R., Brewer, M., Wadl, P.A., Ni, X., Wang, H. 2018. A sugarcane aphid 'Super-Clone' predominates on sorghum and johnsongrass from four US states. Crop Science. 58:2533-2541. https://doi.org/10.2135/cropsci2018.03.0151.
Genetic diversity and population structure of the USDA sweetpotato (Ipomoea batatas) germplasm collection using GBSpoly Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Olukolu, B.A., Branham, S., Jarret, R.L., Yencho, G., Jackson, D. 2018. Genetic diversity and population structure of the USDA sweetpotato (Ipomoea batatas) germplasm collection using GBSpoly. Frontiers in Plant Science. 9:1166. https://doi.org/10.3389/fpls.2018.01166.
Integration of olfactory and visual cues for detection of low density populations of sweetpotato weevil, Cylas formicarius (Fabricius) - (Abstract Only)
Williams III, L.H., McQuate, G.T., Sylva, C.D., Wadl, P.A., Webb, J. 2018. Integration of olfactory and visual cues for detection of low density populations of sweetpotato weevil, Cylas formicarius (Fabricius). International Society of Chemical Ecology Meeting. p.359.
Population structure and genetic diversity within the endangered species Pityopsis ruthii (Asteraceae) Reprint Icon - (Peer Reviewed Journal)
Hatmaker, A.E., Staton, M.E., Dattilo, A.J., Hadziabdic, D., Rinehart, T.A., Schilling, E.E., Trigiano, R.N., Wadl, P.A. 2018. Population structure and genetic diversity within the endangered species Pityopsis ruthii (Asteraceae). Conservation Genetics. 9:943. https://doi.org/10.3389/fpls.2018.00943.
Genetic diversity and population structure of a sweetpotato (Ipomoea batatas) germplasm collection - (Abstract Only)
Wadl, P.A., Olukolu, B.A., Branham, S.A., Jarret, R.L., Yencho, G.C., Jackson, D.M. 2018. Genetic diversity and population structure of a sweetpotato (Ipomoea batatas) germplasm collection. HortScience. 53(9S):S45. https://doi.org/351287.
Genetics of resistance to powdery mildew in watermelon line USVL608-PMR - (Abstract Only)
Kousik, C.S., Ikerd, J.L., Mandal, M.K., Wadl, P. 2018. Genetics of resistance to Powdery Mildew in Watermelon Line USVL608-PMR. Presented at Cucurbitaceae 2018 conference abstracts, Page 55. https://cucurbit2018.ucdavis.edu/ https://doi.org/358415.
Color analysis of storage roots from the USDA, ARS sweetpotato germplasm collection Reprint Icon - (Peer Reviewed Journal)
Jackson, D.M., Harrison Jr, H.F., Jarret, R.L., Wadl, P.A. 2018. Color analysis of storage roots from the USDA, ARS sweetpotato germplasm collection. Genetic Resources and Crop Evolution. 65(4):1217-1236. https://doi:10.1007/s10722-018-0609-6.
Bottle gourd genotypes vary in clomazone tolerance - (Peer Reviewed Journal)
Cutulle, M.A., Harrison Jr, H.F., Kousik, C.S., Wadl, P.A., Levi, A. 2017. Bottle gourd genotypes vary in clomazone tolerance. HortScience. 52:1687-1691.
Quantitative trait loci associated with resistance to powdery mildew in cornus florida - (Peer Reviewed Journal)
Parikh, L., Mmbaga, M.T., Meru, G., Zhang, G., Mackasmiel, L., Wadl, P.A., Wang, X., Trigiano, R.N. 2017. Quantitative trait loci associated with resistance to powdery mildew in cornus florida. Scientia Horticulturae. 226:322-326.
Restoration of the endangered Ruth's golden aster (Pityopsis ruthii) Reprint Icon - (Peer Reviewed Journal)
Wadl, P.A., Saxton, A.M., Call, G., Dattilo, A.J. 2018. Restoration of the endangered Ruth's golden aster (Pityopsis ruthii). Southeastern Naturalist. 17(1):19-31. https://doi.org/10.1656/058.017.0101.
Genotypic and phenotypic evaluation of off-type grasses in hybrid bermudagrass (Cynodon dactylon (L.) Pers. x C. transvaalensis burtt-Davy) putting greens using genotyping-by-sequencing and morphological characterization Reprint Icon - (Peer Reviewed Journal)
Reasor, E.H., Brosnan, J.T., Staton, M.E., Lane, T., Trigiano, R.T., Wadl, P.A., Conner, J.A., Schwartz, B.M. 2017. Genotypic and phenotypic evaluation of off-type grasses in hybrid bermudagrass [Cynodon dactylon (L.) Pers. x C. transvaalensis burtt-Davy] putting greens using genotyping-by-sequencing and morphological characterization. Hereditas. 155:8. https://doi:10.1186/s41065-017-0043-3.
‘Rutpink’ (Scarlet Fire®) Kousa Dogwood Reprint Icon - (Peer Reviewed Journal)
Molnar, T.J., Muehlbauer, M., Wadl, P.A., Capik, J.M. 2017. ‘Rutpink’ (Scarlet Fire®) Kousa Dogwood. HortScience. 52(10):1438-1442. https://doi:10.21273/HORTSCI122-42-17.
Genome sequencing of the sugarcane aphid for microsatellite development and endosymbiont detection - (Abstract Only)
Wadl, P.A., Harris-Shultz, K.R., Wang, X., Ni, X. 2017. Genome sequencing of the sugarcane aphid for microsatellite development and endosymbiont detection [abstract]. XXV International Congress of Entomology. doi:10.1603./ICE.2016.108446.
Is the begomovirus, sweet potato leaf curl virus, really seed transmitted in sweetpotato? Reprint Icon - (Abstract Only)
Ling, K., Wadl, P.A., Williams III, L.H., Simmons, A.M., Jackson, D.M. 2017. Is the begomovirus, sweet potato leaf curl virus, really seed transmitted in sweetpotato?. American Phytopathological Society Annual Meeting. 107(12S):S5.111. https://doi.org/10.1094/PHYTO-107-12-S5.1.
Development and characterization of 13 polymorphic microsatellite loci for Cryptolepsis sanguinolenta, an African antimalarial plant - (Abstract Only)
Evaluation of bicyclopyrone in sweetpotato - (Abstract Only)
Genetic diversity and population structure of the endangered whorled sunflower, Helianthus verticillatus, at two sites in Georgia - (Abstract Only)
Population structure and genetic diversity of Phytophthora nicotianae from tobacco in Georgia - (Peer Reviewed Journal)
Li, Y., Harris-Shultz, K.R., Wang, H., Wadl, P.A., Ji, P. 2017. Population structure and genetic diversity of Phytophthora nicotianae from tobacco in Georgia. Plant Disease. 101:1113-1118.
Microsatellite markers reveal a predominant sugarcane aphid (Homoptera: Aphididae) clone is found on sorghum in seven states and one territory of the USA - (Peer Reviewed Journal)
Harris-Shultz, K.R., Ni, X., Wadl, P.A., Wang, X., Wang, H., Huang, F., Flanders, K., Seiter, N., Kerns, D., Meagher Jr, R.L., Xue, Q., Reisig, D., Buntin, D., Cuevas, H.E., Brewer, M., Yang, X. 2017. Microsatellite markers reveal a predominant sugarcane aphid (Homoptera: Aphididae) clone is found on sorghum in seven states and one territory of the USA. Crop Science. 57:2064-2072.
Controlling herbicide resistant annual bluegrass (Poa annua L.) phenotypes with methiozolin Reprint Icon - (Peer Reviewed Journal)
Brosnan, J.T., Vargas, J.J., Breeden, G.K., Boggess, S.L., Staton, M.A., Wadl, P.A., Trigiano, R.N. 2017. Controlling herbicide resistant annual bluegrass (Poa annua L.) phenotypes with methiozolin. Weed Technology. 31(3):470-476. https://doi.org/10.1017/wet.2017.13.
First report of Alternaria alternata causing leaf spot on the whorled sunflower (Heilianthus verticillatus) in the southeast United States - (Peer Reviewed Journal)
Edwards, T.P., Trigiano, R.N., Wadl, P.A., Ownley, B.H., Hadziabdic, D. 2016. First report of Alternaria alternata causing leaf spot on the whorled sunflower (Heilianthus verticillatus) in the southeast United States. Plant Disease. 101:632. doi:10.1094/PDIS-08-16-1216-PDN.
Thousand cankers disease complex: a forest health issue across the U.S. - (Peer Reviewed Journal)
Daniels, D.A., Lord, R.J., Nix, K.A., Wadl, P.A., Vito, L.M., Wiggins, Gregory, J., Windham, M.T., Ownley, B.H., Lambdin, P.L., Grant, J.F., Merton, P., Hadziabdic, D. 2016. Thousand cankers disease complex: a forest health issue across the U.S.. Forests. 7:260. doi:10.3390/f71102260.
First report of Alternaria alternata causing leaf spot on Ruth's golden aster (Pityopsis ruthii) in Tennessee - (Peer Reviewed Journal)
Edwards, T.P., Trigiano, R.N., Wadl, P.A., Ownley, B.H., Hadziabdic, D. 2016. First report of Alternaria alternata causing leaf spot on Ruth's golden aster (Pityopsis ruthii) in Tennessee. Plant Disease. 101:383. doi:10.1094/PDIS-08-16-1214-PDN.
An update on Hydrangea macrophylla genomics progress using next generation sequencing methods. - (Proceedings)
Evaluation of off-type grasses in hybrid bermudagrass (Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy) putting greens using genotyping-by-sequencing - (Abstract Only)
Reasor, E., Brosnan, J.T., Staton, M.E., Lane, T., Trigiano, R., Wadl, P.A., Conner, J.A., Schwartz, B.M. 2016. Evaluation of off-type grasses in hybrid bermudagrass (Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy) putting greens using genotyping-by-sequencing. American Society of Agronomy. Abstract ID: 99766.
Thousand cankers disease research: The good, the bad and the ugly - (Abstract Only)
Hadziabdic, D., Gazis, R., Oren, E., Klingeman, W., Vito, L., Windham, M., Poplawski, L., Lambdin, P., Grant, J., Wiggins, G., Wadl, P.A., Ownley, B., Staton, M., Moulton, J., Merten, P., Pscheidt, J., Cranshaw, W., Faccoli, M., Juzwik, J., Ginzel, M., Trigiano, R. 2016. Thousand cankers disease research: The good, the bad and the ugly. XXV International Congress of Entomology. doi:10.1603/ICE.2016.89390.
Development and characterization of 12 polymorphic microsatellite loci for pityopsis graminifolia var. latifolia - (Abstract Only)
Boggess, S., Wadl, P.A., Hadziabdic, D., Scheffler, B.E., Windham, A., Klingeman, W., Trigiano, R. 2016. Development and characterization of 12 polymorphic microsatellite loci for pityopsis graminifolia var. latifolia. HortScience. 51:S101.
Population genetics meets ecological genomics and community ecology in Cornus Florida - (Abstract Only)
Pais, A., Xiang, Q., Wadl, P.A., Leebens-Mack, J., Whetten, R. 2016. Population genetics meets ecological genomics and community ecology in Cornus Florida. Botanical Society of America Abstracts. 615.
Characterization of thirteen microsatellite loci from the Ghanian antimalarial plant Cryptolepis sanguinolenta - (Peer Reviewed Journal)
Amissah, J.N., Wadl, P., Hadziabdic, D., Boggess, S., Trigiano, R. 2016. Characterization of thirteen microsatellite loci from the Ghanian antimalarial plant Cryptolepis sanguinolenta. Journal of Medicinal Plants Research. 10(14):183-187.
Current status and ongoing conservation efforts for the federally endangered species Pityopsis ruthii - (Abstract Only)
Edwards, T., Wadl, P.A., Trigiano, R., Hatmaker, E.A., Boggess, S., Moore, P., Klingeman, W., Bernard, E., Dattilo, A., Ownley, B., Rinehart, T.A., Pistrang, M., Call, G., Windham, A., Hadziabdic, D. 2016. Current status and ongoing conservation efforts for the federally endangered species Pityopsis ruthii [abstract]. Phytopathology. 106:S4.34.
‘Appalachian Joy’ is a supernumery, white-bracted cultivar of cornus florida resistant to powdery mildew - (Peer Reviewed Journal)
Trigiano, R.N., Windham, A.S., Windham, M.T., Wadl, P. 2016. ‘Appalachian Joy’ is a supernumery, white-bracted cultivar of cornus florida resistant to powdery mildew. HortScience. 51(5):592-594.
Current status and future direction of sweetpotato research at the U. S. Vegetable Laboratory - (Abstract Only)
Williams III, L.H., Wadl, P.A., Simmons, A.M., Jackson, D.M., Harrison Jr, H.F., Ling, K. 2016. Current status and future direction of sweetpotato research at the U. S. Vegetable Laboratory. HortScience. 51:S35-36.