The physiological, transcriptional and genetic responses of an ozone-sensitive and an ozone tolerant poplar and selected extremes of their F2 progeny
Street, Nathaniel R., Tallis, M.J., Tucker, J., Mikael, Brosche, Jaakko, Kangasjarvi, Broadmeadow, Mark and Taylor, Gail (2011) The physiological, transcriptional and genetic responses of an ozone-sensitive and an ozone tolerant poplar and selected extremes of their F2 progeny. Environmental Pollution, 159, 45-54. (doi:10.1016/j.envpol.2010.09.027).
Relatively little is known about the transcriptional response or genetic control of response and adaptation of trees to tropospheric ozone exposure. Such understanding is needed as up to 50% of forests, globally, may be subjected to phytotoxic concentrations of ozone. The physiological, transcriptional and genetic response to ozone was examined in Populus trichocarpa and P. deltoides, which show extreme sensitivity and tolerance to ozone, respectively. Using an inbred F(2) mapping population derived from these two species, we mapped quantitative trait loci (QTL) for traits associated with ozone response, examined segregation of the transcriptional response to ozone and co-located genes showing divergent responses between tolerant and sensitive genotypes with QTL. QTL were identified linking detrimental effects of ozone with leaf and biomass traits and differential responses were found for key genes involved in ethylene production and response.
|Subjects:||G Geography. Anthropology. Recreation > GE Environmental Sciences|
|Divisions:||University Structure - Pre August 2011 > School of Biological Sciences
|Date Deposited:||17 Nov 2010 12:57|
|Last Modified:||02 Mar 2012 12:16|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
Actions (login required)