Native oak chloroplasts reveal an ancient divide across Europe
MetadataShow full item record
Glacial refugia and postglacial migration are major factors responsible for the present patterns of genetic variation we see in natural populations. Traditionally postglacial history has been inferred from fossil data, but new molecular techniques permit historical information to be gleaned from present populations. The chloroplast tRNALeu1 intron contains regions which have been highly conserved over a billion years of chloroplast evolution. Surprisingly, in one of these regions which has remained invariant for all photosynthetic organisms so far studied, we have found intraspecific site polymorphism. This polymorphism occurs in two European oaks, Quercus robur and Q. petraea, indicating hybridisation and introgression between them. Two distinct chloroplast types occur and are distributed geographically as eastern and western forms suggesting that these oaks are each derived from at least two separate glacial refugia.
A copy of this item may be available from Professor Richard Oliver
Showing items related by title, author, creator and subject.
The Complete Sequence of the Acacia ligulata Chloroplast Genome Reveals a Highly Divergent clpP1 Gene.Williams, A.; Boykin, L.; Howell, K.; Nevill, Paul; Small, I. (2015)Legumes are a highly diverse angiosperm family that include many agriculturally important species. To date, 21 complete chloroplast genomes have been sequenced from legume crops confined to the Papilionoideae subfamily. ...
LOCALIZER: Subcellular localization prediction of both plant and effector proteins in the plant cellSperschneider, J.; Catanzariti, A.; Deboer, K.; Petre, B.; Gardiner, D.; Singh, Karam; Dodds, P.; Taylor, J. (2017)© The Author(s) 2017.Pathogens secrete effector proteins and many operate inside plant cells to enable infection. Some effectors have been found to enter subcellular compartments by mimicking host targeting sequences. ...
Chloroplast DNA diversity associated with protected slopes and valleys for hybridizing Eucalyptus species on isolated ranges in south-eastern AustraliaPollock, L.; Bayly, M.; Nevill, Paul; Vesk, P. (2013)Aim To relate genetic diversity to topographic features and to investigate genetic interactions between Eucalyptus species in a local centre of endemism and diversity in south-eastern Australia. Location Grampian Ranges, ...