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Flowers through insect eyes: the contribution of pollinator vision to the evolution of flower colour
(2010)
Flowers’ colours are an essential element of their ability to attract visits from
pollinators. However, the colours as they appear to human observers can differ
substantially from their appearance to insect pollinators, ...
Investigation of distal repetitive sequences in the genus allium
(2009)
The telomere is a DNA/protein structure required to maintain the ends of linear chromosomes.
Usually the DNA component comprises a highly conserved tandemly repeated
minisatellite sequence. In most plants the minisatellite ...
The depth specific significiance, relative abundance and phylogeography of anaerobic ammonium oxidation (anammox) in marine and estuarine sediments
(2009)
The availability of fixed forms of nitrogen is critical to the regulation of primary
production. Until recently, denitrification (the sequential reduction of NO3
-, through NO2
-
, to di-nitrogen gas) was recognised ...
Two-component signalling systems of chloroplasts: function, distribution and evolution
(2008)
Two-component signal transduction, comprising sensor kinases and response
regulators, is the predominant signalling mechanism in prokaryotes. This signalling
system originated in bacteria, and has spread to the eukaryotic ...
The effect of molecular, morphological and spectral reflectance evolution on nicotiana polyploids of different ages
(2010)
Interspecific hybridisation accompanied by multiplication of chromosome
number, or allopolyploidy, results in rapid genetic, epigenetic, chromosomal and
morphological changes. Evidence of ancient polyploidisation is ...
An investigation of gardening in the sedentary caddisfly Tinodes waeneri across a nutrient gradient
(2009)
Sedentary species face a trade-off between the advantages of exploiting food close to
their homes and the cost of defending it. Consequently, the net benefit of this lifestyle
may be greatest at intermediate productivity. ...
Study of factors controlling the photoprotection capacity of the thylakoid membrane
(2010)
Plants require light for the process of photosynthesis, but excess of light absorption can
cause photooxidative damage. To avoid this damage, plants have evolved a photoprotective
mechanism to dissipate excess light ...
Ecological studies on the symbiosis of termitomyces heim with Nigerian macrotermitinae
(1981)
The relationship between termites of the sub-family Macrotermitinae
and the symbiotic Basidiomycete fungus Termitomyces was
investigated.
Fieldwork was carried out on several termite species at Mokwa
in the Southern ...
Evolution of repetitive DNA in angiosperms: examples from Nicotiana allopolyploids
(2012)
Allopolyploidy, interspecific hybridisation coupled with genome
multiplication, is a prevailing force in the evolution of angiosperms. This thesis
examines the consequences of allopolyploidy at the genomic level. The ...
Novel mechanisms operating in the central pacemaker and in the light-synchronization pathway of Drosophila’s circadian clock
(2011)
Most organisms display circadian rhythms of approximately 24 hours in many
aspects of their physiology and behaviour. The synchronization between their internal
rhythm and the environmental light-dark cycles is essential ...