Grant Information

EVALUATION OF HYBRIDS OF CITRUS AND CITRUS RELATIVES FOR HUANGLONGBING (HLB) TOLERANCE/RESISTANCE (5200-147B)

Sponsoring Institution Agricultural Research Service/USDA
Status ACTIVE
Funding Source USDA INHOUSE
Reporting Frequency Annual
Project Director HALL D G
Accession Number 427881
Project Number 6034-22320-001-52T
Dates 2014-10-01 - 2015-09-30
Recipient Organization AGRICULTURAL RESEARCH SERVICE
219 SOUTH ROCK ROAD
FT PIERCE,FL 34945
Keywords asian
citrus
greening
huanglongbing
liberibacter
pysllid
Research Effort Applied (30%)
Basic (45%)
Developmental (25%)
Classification Parameters
Knowledge AreaSubject of InvestigationField of SciencePercent
211 - Insects, Mites, and Other Arthropods Affecting Plants 910 - Grapefruit 1040 - Molecular biology 40%
215 - Biological Control of Pests Affecting Plants 920 - Orange 1130 - Entomology and acarology 40%
211 - Insects, Mites, and Other Arthropods Affecting Plants 1131 - Wine grapes 1130 - Entomology and acarology 10%
216 - Integrated Pest Management Systems 1130 - Table grapes 1040 - Molecular biology 10%
Goals / Objectives
Screen progeny plants from new citrus crosses for resistance to citrus greening disease.
Methods (unparsed)

Seeds from crosses between citrus and citrus relatives will be planted in Fort Pierce. When the plants are about six months old, they will be challenged with psyllids carrying the bacterial pathogen responsible for citrus greening disease. After a two-week challenge, the plants will be treated with pesticide and the experiment will be continued in the screened enclosures. The plants will subsequently be observed on a regular basis for huanglongbing symptoms and tested for Las by qPCR. The intent is to discover genetic material that is tolerant or resistant to citrus greening disease.

Methods
Seeds from crosses between citrus and citrus relatives will be planted in Fort Pierce. When the plants are about six months old, they will be challenged with psyllids carrying the bacterial pathogen responsible for citrus greening disease. After a two-week challenge, the plants will be treated with pesticide and the experiment will be continued in the screened enclosures. The plants will subsequently be observed on a regular basis for huanglongbing symptoms and tested for Las by qPCR. The intent is to discover genetic material that is tolerant or resistant to citrus greening disease.