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LinkedInLooking for Resistance to Huanglongbing
There is some variability in citrus susceptibility to both the psyllid (Westbrook et al and Hall et al) and the bacterial infection (Shokrollah et al and Stover and Mc Collum). It is not fully clear at this point which of these species would be best to include in a breeding program, but both scions (http://www.concitver.com/3erEIIC2011/Viernes_23_sep/Ed_Stover/Ed_Stover.pdf) and rootstocks (http://www.flcitrusmutual.com/files/4cbb1e3c-1e1f-4b04-a.pdf) are being evaluated.
Some varieties like Australian Finger Lime (Microcitrus australasica) might show more resistance/tolerance to HLB than other species. At the UC Citrus Variety Collection website, it's possible to see the wide range of citrus species that are available for breeding and the commercial availability of those species. The collection is a view into the different materials that breeders can select from, in order to improve resistance to this citrus disease.
Citrus Variety Collection
http://www.citrusvariety.ucr.edu/
Australian Finger Lime Collection and Availability
http://www.citrusvariety.ucr.edu/citrus/microcitrus.html
Susceptibility to Infestation by Asian Citrus Psyllid
Catherine J. Westbrook1, David G. Hall2, Ed Stover, and Yong Ping Duan
http://www.ars.usda.gov/SP2UserFiles/Place/66180000/Westbrook%20et%20al%202011%20HortScience.pdf
D. Hall, C. Westbrook, Y.-P. Duan, E. Stover, R. Lee and M. Richardson http://citrusagents.ifas.ufl.edu/events/fl_citrus2011/Hall%20ACP%20IR%20Citrus%20Expo%202011.pdf
Susceptibility to HLB
Hajivand Shokrollah, Thohirah Lee Abdullah, Kamaruzaman Sijam,Siti Nor Akmar Abdullah and
Nur Ashikin Psyquay Abdullah
http://thescipub.com/PDF/ajabssp.2009.32.38.pdf
Ed Stoverand Greg McCollum
http://hortsci.ashspublications.org/content/46/10/1344.full.pdf+html
Photos
Australian Finger Lime Fruit
Australian Finger Lime Tree
Australian finger lime fruit
Australian finger lime tree
