Results 51 to 60 of about 509,888 (322)
Phylogenetic impoverishment of Amazonian tree communities in an experimentally fragmented forest landscape. [PDF]
PLoS ONE, 2014 Amazonian rainforests sustain some of the richest tree communities on Earth, but their ecological and evolutionary responses to human threats remain poorly known.
Bráulio A Santos +6 more
doaj +1 more source
Angewandte Chemie, Volume 134, Issue 51, December 19, 2022., 2022 Benzoxazolinate is a rare bis‐heterocyclic moiety that interacts with proteins and DNA. It was found that a putative acyl AMP‐ligase mediates the last cyclization step to afford benzoxazolinate. The enzyme was then used as a probe for genome mining, which led to the discovery of a new class of benzoxazolinate‐containing compounds in diverse bacteria ...
Yi‐Ming Shi +12 more
wiley +2 more sources
PLoS ONE, 2015 Investigating patterns of phylogenetic structure across different life stages of tree species in forests is crucial to understanding forest community assembly, and investigating forest gap influence on the phylogenetic structure of forest regeneration is
Yi Jin, Hong Qian, Mingjian Yu
doaj +1 more source
A matroid associated with a phylogenetic tree [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 Special issue PRIMA 2013 A (pseudo-)metric D on a finite set X is said to be a \textquotelefttree metric\textquoteright if there is a finite tree with leaf set X and non-negative edge weights so that, for all x,y ∈X, D(x,y) is the path distance in the tree between x and y. It is well known that not every metric is a tree metric. However, when
Dress, Andreas +2 more
openaire +5 more sources
Multipolar Consensus for Phylogenetic Trees [PDF]
Systematic Biology, 2006 Collections of phylogenetic trees are usually summarized using consensus methods. These methods build a single tree, supposed to be representative of the collection. However, in the case of heterogeneous collections of trees, the resulting consensus may be poorly resolved (strict consensus, majority-rule consensus, ...), or may perform arbitrary ...
Bonnard, Cécile +2 more
openaire +4 more sources
A Fast and Scalable Method for Inferring Phylogenetic Networks from Trees by Aligning Lineage Taxon Strings [PDF]
arXiv, 2023 The reconstruction of phylogenetic networks is an important but challenging problem in phylogenetics and genome evolution, as the space of phylogenetic networks is vast and cannot be sampled well. One approach to the problem is to solve the minimum phylogenetic network problem, in which phylogenetic trees are first inferred, then the smallest ...
arxiv
A metric on phylogenetic tree shapes [PDF]
Systematic Biology, 2016 AbstractThe shapes of evolutionary trees are influenced by the nature of the evolutionary process, but comparisons of trees from different processes are hindered by the challenge of completely describing tree shape. We present a full characterization of the shapes of rooted branching trees in a form that lends itself to natural tree comparisons.
Colijn, C, Plazzotta, G
openaire +7 more sources
American Journal of Botany, Volume 109, Issue 12, Page 1991-2005, December 2022., 2022 Abstract Premise Numerous processes influence plant distributions and co‐occurrence patterns, including ecological sorting, limiting similarity, and stochastic effects. To discriminate among these processes and determine the spatial scales at which they operate, we investigated how functional traits and phylogenetic relatedness influence the ...
Jared J. Beck +7 more
wiley +1 more source
American Journal of Botany, Volume 109, Issue 12, Page 2068-2081, December 2022., 2022 Abstract Premise Approximately 14% of all fern species have physiologically active chlorophyllous spores that are much more short‐lived than the more common and dormant achlorophyllous spores. Most chlorophyllous‐spored species (70%) are epiphytes and account for almost 37% of all epiphytic ferns.
Daniela Mellado‐Mansilla +6 more
wiley +1 more source
A new resolution function to evaluate tree shape statistics.
PLoS ONE, 2019 Phylogenetic trees are frequently used in biology to study the relationships between a number of species or organisms. The shape of a phylogenetic tree contains useful information about patterns of speciation and extinction, so powerful tools are needed ...
Maryam Hayati +2 more
doaj +1 more source