2008
DOI: 10.1080/10635150801910436
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Testing Congruence in Phylogenomic Analysis

Abstract: Phylogenomic analyses of large sets of genes or proteins have the potential to revolutionize our understanding of the tree of life. However, problems arise because estimated phylogenies from individual loci often differ because of different histories, systematic bias, or stochastic error. We have developed Concaterpillar, a hierarchical clustering method based on likelihood-ratio testing that identifies congruent loci for phylogenomic analysis. Concaterpillar also includes a test for shared relative evolutiona… Show more

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Cited by 184 publications
(164 citation statements)
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“…For each gene, the concordance of individual exon trees was assessed with the software Concaterpillar v.1.7.2 (ref. 51), and we removed either individual exon alignments or all exon alignments for a given gene from the data set, depending on the number of congruent exon trees (Supplementary Note). To filter for genes with clock-like evolution, we estimated the coefficient of variation of rates of each gene with the software BEAST v.2.2.0 (ref.…”
Section: Methodsmentioning
confidence: 99%
“…For each gene, the concordance of individual exon trees was assessed with the software Concaterpillar v.1.7.2 (ref. 51), and we removed either individual exon alignments or all exon alignments for a given gene from the data set, depending on the number of congruent exon trees (Supplementary Note). To filter for genes with clock-like evolution, we estimated the coefficient of variation of rates of each gene with the software BEAST v.2.2.0 (ref.…”
Section: Methodsmentioning
confidence: 99%
“…Significant incongruences are annotated and returned to the user, together with the estimated species tree. Leigh et al (2008) proposed a method in which conflicts are measured in the likelihood framework. Genes are concatenated into supergenes and analysed jointly, only if congruent with each other.…”
Section: How Should We Analyse and Represent Phylogenomic Datasets Knmentioning
confidence: 99%
“…Um argumento geral em favor da análise individual ou separada é que diferentes genes, na maioria das vezes, possuem diferentes níveis de lineage sorting, além de estarem sujeitos a eventos distintos de hibridização, duplicação gênica e perda diferencial, introgressão e transferência lateral (Leigh et al 2008). Em consequência disso, simulações computacionais indicam que uma filogenia obtida a partir da análise combinada de grupos de caracteres heterogêneos pode ser pior do que filogenias dos 23 ________________________________________________________INTRODUÇÃO mesmos grupos de dados analisados separadamente, uma vez que seria mais informativo obter uma reposta certa e outra errada a partir da análise separada, ao invés de uma única resposta errada a partir da análise simultânea (Bull et al 1993, Miyamoto & Fitch, 1995.…”
Section: Análise Individual Versus Análise Combinadaunclassified
“…Por outro lado, problemas com falso negativo também vêm sendo reportados em relação ao teste de congruência mais comumente usado, o ILD (Incongruence Length Difference test) (Farris et al, 1995) ou PHT (Partition Homogeneity Test), que por ser um teste baseado em parcimônia, é muito sensível às características evolutivas das partições analisadas, isto é, à variação das taxas evolutivas e das taxas de substituição entre os sítios (Darlu & Lecointre, 2002;Barker & Lutzoni, 2002;Leigh et al 2008).…”
Section: Análise Individual Versus Análise Combinadaunclassified
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