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K. Jun Tong
University of Sydney
9Publications
3H-index
61Citations
Publications 9
Newest
#1Matteo Montagna (University of Milan)H-Index: 6
#2K. Jun Tong (USYD: University of Sydney)H-Index: 3
Last.Nathan Lo (USYD: University of Sydney)H-Index: 40
view all 7 authors...
Insects are a highly diverse group of organisms and constitute more than half of all known animal species. They have evolved an extraordinary range of traits, from flight and complete metamorphosis...
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#1Matteo MontagnaH-Index: 6
#2K. Jun TongH-Index: 3
Last.Nathan LoH-Index: 40
view all 7 authors...
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#1K. Jun Tong (USYD: University of Sydney)H-Index: 3
#2David A. Duchêne (USYD: University of Sydney)H-Index: 10
Last.Simon Y. W. Ho (USYD: University of Sydney)H-Index: 58
view all 5 authors...
Background Phylogenetic analysis of DNA from modern and ancient samples allows the reconstruction of important demographic and evolutionary processes. A critical component of these analyses is the estimation of evolutionary rates, which can be calibrated using information about the ages of the samples. However, the reliability of these rate estimates can be negatively affected by among-lineage rate variation and non-random sampling. Using a simulation study, we compared the performance of three ...
5 CitationsSource
#1David A. Duchêne (USYD: University of Sydney)H-Index: 10
#2K. Jun Tong (USYD: University of Sydney)H-Index: 3
Last.Simon Y. W. Ho (USYD: University of Sydney)H-Index: 58
view all 6 authors...
Evolution leaves heterogeneous patterns of nucleotide variation across the genome, with different loci subject to varying degrees of mutation, selection, and drift. Appropriately modelling this heterogeneity is important for reliable phylogenetic inference. One modelling approach in statistical phylogenetics is to apply independent models of molecular evolution to different groups of sites, where the groups are usually defined by locus, codon position, or combinations of the two. The potential i...
1 CitationsSource
#1K. Jun Tong (USYD: University of Sydney)H-Index: 3
#2David A. Duchêne (USYD: University of Sydney)H-Index: 10
Last.Simon Y. W. Ho (USYD: University of Sydney)H-Index: 58
view all 5 authors...
The estimation of evolutionary rates from ancient DNA sequences can be negatively affected by among-lineage rate variation and non-random sampling. Using a simulation study, we compared the performance of three phylogenetic methods for inferring evolutionary rates from time-structured data sets: root-to-tip regression, least-squares dating, and Bayesian inference. Our results show that these methods produce reliable estimates when the substitution rate is high, rate variation is low, and samples...
1 CitationsSource
#1K. Jun Tong (USYD: University of Sydney)H-Index: 3
#2Sebastián Duchêne (USYD: University of Sydney)H-Index: 23
Last.Simon Y. W. Ho (USYD: University of Sydney)H-Index: 58
view all 4 authors...
2 CitationsSource
#1K. Jun Tong (USYD: University of Sydney)H-Index: 3
#2Sebastián Duchêne (USYD: University of Sydney)H-Index: 23
Last.Simon Ho (USYD: University of Sydney)H-Index: 2
view all 4 authors...
Genomes evolve through a medley of mutation, drift, and selection, all of which act heterogeneously across genes and lineages. The pacemaker models of genomic evolution describe the resulting patterns of evolutionary rate variation: genes that are governed by the same pacemaker exhibit the same pattern of rate heterogeneity across lineages. However, the relative importance of drift and selection in determining the structure of these pacemakers is unknown. Here, we propose a novel phylogenetic ap...
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#1Nathan Lo (USYD: University of Sydney)H-Index: 40
#2K. Jun Tong (USYD: University of Sydney)H-Index: 3
Last.Kiyoto Maekawa (University of Toyama)H-Index: 21
view all 8 authors...
Parallel evolution is the independent appearance of similar derived phenotypes from similar ancestral forms. It is of key importance in the debate over whether evolution is stochastic and unpredictable, or subject to constraints that limit available phenotypic options. Nevertheless, its occurrence has rarely been demonstrated above the species level. Climate change on the Australian landmass over the last approximately 20 Myr has provided conditions conducive to parallel evolution, as taxa at th...
5 CitationsSource
#1Simon Y. W. Ho (USYD: University of Sydney)H-Index: 58
#2K. Jun Tong (USYD: University of Sydney)H-Index: 3
Last.Michael D. Crisp (ANU: Australian National University)H-Index: 38
view all 6 authors...
Molecular estimates of evolutionary timescales have an important role in a range of biological studies. Such estimates can be made using methods based on molecular clocks, including models that are able to account for rate variation across lineages. All clock models share a dependence on calibrations, which enable estimates to be given in absolute time units. There are many available methods for incorporating fossil calibrations, but geological and climatic data can also provide useful calibrati...
47 CitationsSource
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