scispace - formally typeset
Open AccessJournal ArticleDOI

Gaps as Characters in Sequence-Based Phylogenetic Analyses

Mark P. Simmons, +1 more
- 01 Jun 2000 - 
- Vol. 49, Iss: 2, pp 369-381
Reads0
Chats0
TLDR
Treatment of gaps varies widely from secondarily mapping gaps onto the tree inferred from base characters to uniformly applied method of treating gaps, which is lacking in sequence-based phyloge?
Abstract
In the analysis of sequence-based data matrices, the use of different methods of treating gaps has been demonstrated to in? fluence the resulting phylogenetic hypothe? ses (e.g., Eernisse and Kluge, 1993; Vogler and DeSalle, 1994; Simons and Mayden, 1997). Despite this influence, a well-justi? fied, uniformly applied method of treating gaps is lacking in sequence-based phyloge? netic studies. Treatment of gaps varies widely from secondarily mapping gaps onto the tree inferred from base characters

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

DnaSP v5

TL;DR: Version 5 implements a number of new features and analytical methods allowing extensive DNA polymorphism analyses on large datasets, including visualizing sliding window results integrated with available genome annotations in the UCSC browser.
Journal ArticleDOI

Ribosomal ITS sequences and plant phylogenetic inference.

TL;DR: Despite the near-universal usage of ITS sequence data in plant phylogenetic studies, its complex and unpredictable evolutionary behavior reduce its utility for phylogenetic analysis, and it is suggested that more robust insights are likely to emerge from the use of single-copy or low-copy nuclear genes.
Journal ArticleDOI

Whole-genome analyses resolve early branches in the tree of life of modern birds

Erich D. Jarvis, +116 more
- 12 Dec 2014 - 
TL;DR: A genome-scale phylogenetic analysis of 48 species representing all orders of Neoaves recovered a highly resolved tree that confirms previously controversial sister or close relationships and identifies the first divergence in Neoaves, two groups the authors named Passerea and Columbea.
Journal ArticleDOI

Analysis of 81 genes from 64 plastid genomes resolves relationships in angiosperms and identifies genome-scale evolutionary patterns.

TL;DR: Phylogenetic trees from multiple methods provide strong support for the position of Amborella as the earliest diverging lineage of flowering plants, followed by Nymphaeales and Austrobaileyales, and the plastid genome trees also provide strongSupport for a sister relationship between eudicots and monocots, and this group is sister to a clade that includes Chloranthales and magnoliids.
References
More filters
Journal ArticleDOI

Concepts and tests of homology in the cladistic paradigm

TL;DR: Logical equivalence between the notions of homology and synapomorphy is reviewed and supported, and a general theoretical solution is proposed to determine evolution of characters with ambiguous distributions, based on the notion of maximization ofHomology propositions.
Journal ArticleDOI

The Strepsiptera problem: phylogeny of the holometabolous insect orders inferred from 18S and 28S ribosomal DNA sequences and morphology.

TL;DR: Phylogenetic relationships among the holometabolous insect orders were inferred from cladistic analysis of nucleotide sequences of 18S ribosomal DNA (rDNA) and 28S rDNA and morphological characters.
Journal ArticleDOI

Maximum Likelihood and Minimum-Steps Methods for Estimating Evolutionary Trees from Data on Discrete Characters

TL;DR: The application of maximum likelihood methods to discrete characters is examined, and it is shown that parsimony methods are notmaximum likelihood methods under the assumptions made by Farris, and an algorithm which enables rapid calculation of the likelihood of a phylogeny is described.
Journal ArticleDOI

Optimization alignment: the end of multiple sequence alignment in phylogenetics?

TL;DR: A method is described to assess directly the number of DNA sequence transformations, evolutionary events, required by a phylogenetic topology without the use of multiple sequence alignment through a generalization of existing character optimization procedures to include insertion and deletion events (indels) in addition to base substitutions.