Genome Size Evolution in Animals

@inproceedings{Gregory2005GenomeSE,
  title={Genome Size Evolution in Animals},
  author={T. Gregory},
  year={2005}
}
Publisher Summary This chapter focuses on genomic size evolution in animals. There are many ways of studying the evolution of genome. The chapter looks on the examination of genome level phenomena from a variety of different structural and temporal perspectives. The term “genom(e)” was coined by Hans Winkler in 1920 as a portmanteau of gene and chromosome. This canonical etymology has been challenged by Lederberg and McCray, who suggested that Winkler probably merged gene with the generalized… Expand
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References

SHOWING 1-10 OF 302 REFERENCES
The evolution of genome size: what can be learned from anuran development?
TLDR
It is shown that genome size is correlated with cell proliferation rate and with developmental rate at different stages of embryonic development, but that the correlation between genome size and cell size is only evident at later stages. Expand
The modulation of DNA content: proximate causes and ultimate consequences.
TLDR
There is increasing evidence for the primacy of selection in molding genome sizes via impacts on cell size and division rates and processes inducing quantum or doubling series variation in gametic or somatic genome sizes are common. Expand
Feast and famine in plant genomes
TLDR
This work used a phylogenetic approach to evaluate the directionality of genome size evolution among Gossypium species and their relatives in the cotton tribe, and suggested that poorly understood genomic contraction mechanisms operate on a more extensive scale that previously recognized. Expand
Reptiles: a group of transition in the evolution of genome size and of the nucleotypic effect
  • E. Olmo
  • Medicine, Biology
  • Cytogenetic and Genome Research
  • 2003
TLDR
It is reasonable to surmise that variations in the reptilian genome were initially influenced by different indels spectra typical of the diverse lineages, possibly related to different chromosome compartmentalizations. Expand
Genome size and developmental complexity
TLDR
An appreciation for this rate-complexity interaction has so far been lacking, but is essential for an understanding of the relationships between genome size and development, and may help to explain patterns of variation in taxa as diverse as insects and fish. Expand
Insertion-deletion biases and the evolution of genome size.
TLDR
The mutational equilibrium model is found to be problematic, and it is noted that DNA loss by small indels is too slow in real time to determine variation in genome size above a relatively low threshold. Expand
Skeletal DNA and the evolution of genome size.
TLDR
Recent ideas and evidence concerning the C-value paradox are discussed, suggesting that DNA may have quantitative noncoding functions in addition to its better established qualitative coding ones. Expand
Genome size variation in aphids
TLDR
The first detailed information on genome sizes in aphids is provided, showing that diploid genome sizes show a 5-fold range which is unassociated with chromosome number. Expand
Intron–Genome Size Relationship on a Large Evolutionary Scale
TLDR
In contrast to previous reports, avian introns were not found to be significantly shorter than introns of mammals, although avian genomes are smaller than genomes of mammals on average by about a factor of 2.5. Expand
Evolution of genome size in Drosophila. is the invader's genome being invaded by transposable elements?
TLDR
It is shown that in Drosophila melanogaster and Drosophile simulans the size of the genome varies among populations and is correlated with the TE copy number on the chromosome arms, which indicates that a quantitative increase in the TEs in local populations and fly migration are sufficient to account for the increase in genome size, with no need for an adaptation hypothesis. Expand
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