My research utilizes genomics approaches to enhance forest tree genetics and ultimately prepare our forests and tree species for current and future challenges presented by an ever-changing climate. Specifically, I am an expert in deciphering forest tree-insect/pathogen interactions from the ecological to functional genomic level. I work towards the development of novel pest management strategies against devastating forest pests through the application and integration of forest health genomics. Forest pest interactions with trees are relatively unexplored at the level of molecular mechanism. Some forest trees possess natural resistance to pests which include chemical and physical defense systems working together to enable tree survival. These mechanisms and defense systems are controlled and regulated by specific genes and gene families that contribute to the ultimate phenotypic expression of resilience traits. Once important genes/genomic regions are identified, I use functional and quantitative genomics approaches to develop pest management strategies to improve ecological and economic gains for the forestry industry and associated stakeholders.

Works (19)

2020 journal article

Gymnosperm glandular trichomes: expanded dimensions of the conifer terpenoid defense system

Scientific Reports, 10(1).

By: J. Celedon, J. Whitehill, L. Madilao & J. Bohlmann

Source: ORCID
Added: August 29, 2020

2019 journal article

A molecular and genomic reference system for conifer defence against insects

Plant Cell and Environment, 42(10), 2844–2859.

By: J. Whitehill & J. Bohlmann

Source: ORCID
Added: August 24, 2020

2019 journal article

Functions of stone cells and oleoresin terpenes in the conifer defense syndrome

New Phytologist, 221(3), 1503–1517.

By: J. Whitehill, M. Yuen, H. Henderson, L. Madilao, K. Kshatriya, J. Bryan, B. Jaquish, J. Bohlmann

Source: ORCID
Added: August 24, 2020

2018 journal article

Histology of resin vesicles and oleoresin terpene composition of conifer seeds

Canadian Journal of Forest Research, 48(9), 1073–1084.

By: K. Kshatriya, J. Whitehill, L. Madilao, H. Henderson, A. Kermode, D. Kolotelo, J. Bohlmann

Source: ORCID
Added: August 24, 2020

2016 journal article

Function of Sitka spruce stone cells as a physical defence against white pine weevil.

Plant, Cell & Environment, 11(11), 2545–2556.

By: J. Whitehill, H. Henderson, W. Strong, B. Jaquish & J. Bohlmann

Source: ORCID
Added: August 24, 2020

2016 journal article

Histology and cell wall biochemistry of stone cells in the physical defence of conifers against insects

Plant Cell and Environment, 39(8), 1646–1661.

By: J. Whitehill, H. Henderson, M. Schuetz, O. Skyba, M. Yuen, J. King, A. Samuels, S. Mansfield, J. Bohlmann

Source: ORCID
Added: August 24, 2020

2016 journal article

Progress and gaps in understanding mechanisms of ash tree resistance to emerald ash borer, a model for wood-boring insects that kill angiosperms

New Phytologist, 209(1), 63–79.

By: C. Villari, D. Herms, J. Whitehill, D. Cipollini & P. Bonello

Source: ORCID
Added: August 24, 2020

2014 journal article

Decreased emergence of emerald ash borer from ash treated with methyl jasmonate is associated with induction of general defense traits and the toxic phenolic compound verbascoside.

Oecologia, 12(4), 1047–1059.

By: J. Whitehill, C. Rigsby, D. Cipollini, D. Herms & P. Bonello

Source: ORCID
Added: August 24, 2020

2014 journal article

Effects of water availability on emerald ash borer larval performance and phloem phenolics of Manchurian and black ash

Plant, Cell and Environment, 37(4), 1009–1021.

By: S. Chakraborty, J. Whitehill, A. Hill, S. Opiyo, D. Cipollini, D. Herms, P. Bonello

Source: ORCID
Added: August 24, 2020

2014 journal article

Reserves Accumulated in Non-Photosynthetic Organs during the Previous Growing Season Drive Plant Defenses and Growth in Aspen in the Subsequent Growing Season

Journal of Chemical Ecology, 40(1), 21–30.

By: A. Najar, S. Landhäusser, J. Whitehill, P. Bonello & N. Erbilgin

Source: ORCID
Added: August 24, 2020

2013 journal article

The Pseudomonas syringae pv. tomato type III effector HopM1 suppresses Arabidopsis defenses independent of suppressing salicylic acid signaling and of targeting AtMIN7.

PloS One, 8(12).

By: A. Gangadharan, M. Sreerekha, J. Whitehill, J. Ham & D. Mackey

Source: ORCID
Added: August 24, 2020

2012 journal article

Interspecific comparison of constitutive ash phloem phenolic chemistry reveals compounds unique to manchurian ash, a species resistant to emerald ash borer.

Journal of Chemical Ecology, 5(5), 499–511.

By: J. Whitehill, S. Opiyo, J. Koch, D. Herms, D. Cipollini & P. Bonello

Source: ORCID
Added: August 24, 2020

2012 journal article

Nutritional attributes of ash (Fraxinus spp.) outer bark and phloem and their relationships to resistance against the emerald ash borer.

Tree Physiology, 12(12), 1522–1532.

By: A. Hill, J. Whitehill, S. Opiyo, P. Phelan & P. Bonello

Source: ORCID
Added: August 24, 2020

2012 journal article

The U-Box/ARM E3 ligase PUB13 regulates cell death, defense, and flowering time in Arabidopsis.

Plant Physiology, 5(1), 239–250.

By: W. Li, I. Ahn, Y. Ning, C. Park, L. Zeng, J. Whitehill, H. Lu, Q. Zhao ...

Source: ORCID
Added: August 24, 2020

2011 journal article

Differential response in foliar chemistry of three ash species to emerald ash borer adult feeding

Journal of Chemical Ecology, 37(1), 29–39.

By: Y. Chen, J. Whitehill, P. Bonello & T. Poland

Source: ORCID
Added: August 24, 2020

2011 journal article

Distinguishing defensive characteristics in the phloem of ash species resistant and susceptible to emerald ash borer.

Journal of Chemical Ecology, 5(5), 450–459.

By: D. Cipollini, Q. Wang, J. Whitehill, J. Powell, P. Bonello & D. Herms

Source: ORCID
Added: August 24, 2020

2011 journal article

Feeding by emerald ash borer larvae induces systemic changes in black ash foliar chemistry

Phytochemistry, 72(16), 1990–1998.

By: Y. Chen, J. Whitehill, P. Bonello & T. Poland

Source: ORCID
Added: August 24, 2020

2011 journal article

Interspecific proteomic comparisons reveal ash phloem genes potentially involved in constitutive resistance to the emerald ash borer.

PloS One, 6(9).

By: J. Whitehill, A. Popova-Butler, K. Green-Church, J. Koch, D. Herms & P. Bonello

Source: ORCID
Added: August 24, 2020

2007 journal article

Ips pini (Curculionidae: Scolytinae) is a vector of the fungal pathogen, Sphaeropsis sapinea (Coelomycetes), to Austrian Pines, Pinus nigra (Pinaceae)

Environmental Entomology, 36(1), 114–120.

By: J. Whitehill, J. Lehman & P. Bonello

Source: ORCID
Added: August 24, 2020

Employment

2020 - present

North Carolina State University Raleigh, NC, US
Assistant Professor, Christmas Tree Genetics Program Department of Forestry and Environmental Resources

2019 - 2020

British Columbia Ministry of Forests Victoria, British Columbia, CA
Coastal Forest Health Research Scientist Forest Genetics - Forest Improvement and Research Management Branch

2016 - 2020

University of British Columbia Vancouver, BC, CA
Research Associate Michael Smith Laboratories

2011 - 2016

University of British Columbia Vancouver, BC, CA
Post-Doctoral Fellow Michael Smith Laboratories

Education

2006 - 2011

Ohio State University Columbus, OH, US
Ph.D., Specialization in Biotechnology and Molecular Biology Plant Pathology

2001 - 2006

Otterbein University Westerville, OH, US
General Music with an emphasis on Piano Performance Music

2001 - 2006

Otterbein University Westerville, OH, US
Life Science emphasis on Plant Science, Ecology and Molecular Biology Biology