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Interactions
IS-MPMI > COMMUNITY > Interactions > Posts > InterConnections: Get to Know Member Li-Na Yang
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| The July 2020 Editor’s pick for MPMI
is, “Phytophthora
infestans AVR2 Effector Escapes R2 Recognition Through Effector
Disordering,” in which Li-Na Yang and co-authors explore the role of intrinsic disorder in the development of
pathogenicity in the RXLR AVR2 effector of P. infestans. Their results
support the notion that intrinsic disorder is important for the effector
function of pathogens and demonstrate that SLiM-mediated protein–protein
interaction in the C-terminal effector domain might contribute greatly to the
evasion of resistance-protein detection in P. infestans.
Name: Li-Na
Yang
Current Position: Associate professor
at the College of Plant Protection, Fujian Agriculture and Forestry University,
Fujian, China.
Education: B.Sc. and Ph.D. in Plant Pathology
at Fujian Agriculture and Forestry University, Fujian, China.
Non-scientific Interest: Traveling, walking, reading, gardening, and cooking.
Brief-bio: I am currently an associate professor at the College of Plant Protection,
Fujian Agriculture and Forestry University. I worked with Professor Jiasui
Zhan for nearly 10 years on the population genetics, molecular genetics, and
evolutionary ecology of the devastating potato pathogen Phytophthora infestans. I am interested in the effects of ecological
(biotic or abiotic) factors on the evolutionary potential and trajectory of
pathogen ecological and life history traits, such as fungicide resistance and pathogenicity governed by effector genes, etc. For
biotic factors, my research mainly
focuses on host diversification
and host resistance. We find
that compared with monoculture,
the mixture of different potato cultivars significantly slows down the evolution of pathogenicity
and fungicide resistance of P. infestans,
and late blight epidemic in the field is
also significantly reduced. This result
has been used to guide commercial production of potato in the Yunan and Guizhou
areas of Southwest China with great success. For abiotic factors, my research mainly focuses on the impacts of climate change, such as increasing atmosphere temperature
and carbon dioxide, on the evolution
of plant pathogens. We find temperature-mediated evolution of P. infestans in individual genes (e.g.
effector genes) and at the organism level. In the laboratory, P. infestans can adapt to changed
experimental temperature
quickly, and the spatial differentiation of fungicide tolerance increases
under elevated experimental temperatures. We also find that the pathogenicity of P. infestans significantly increases as carbon dioxide
concentration increases. These results indicate late blight will become more difficult to control under future climate conditions of higher atmosphere temperatures and carbon dioxide concentrations.
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