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Multifunctional cellulase enzymes are ancestral in Polyneoptera

Published on Feb 1, 2020in Insect Molecular Biology2.437
路 DOI :10.1111/imb.12614
Matan Shelomi10
Estimated H-index: 10
(NTU: National Taiwan University),
Benjamin Wipfler17
Estimated H-index: 17
+ 1 AuthorsYannick Pauchet26
Estimated H-index: 26
(MPG: Max Planck Society)
Abstract
  • References (44)
  • Citations (2)
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References44
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El genero Neotropical Pseudopimelodus es el segundo con la mas amplia distribucion de la familia Pseudopimelodidae en Sur America y comprende cuatro especies validas que habitan en diferentes rios trans y cis-andinos. De estas cuatro especies, dos se encuentran registradas en Colombia: P. schultzi distribuida en las cuencas Magdalena-Cauca y Caribe y P. bufonius en el rio Atrato y en las cuencas Amazonas y Orinoco. Diversos procesos paleogeograficos resultantes de la orogenia Andina en Surameric...
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#2Derek Shirley (UT: University of Tennessee)H-Index: 1
Last. Juan Luis Jurat-Fuentes (UT: University of Tennessee)H-Index: 33
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The digestive system of selected phytophagous insects has been examined as a potential prospecting resource for identification of novel cellulolytic enzymes with potential industrial applications. In contrast to other model species, however, limited detailed information is available that characterizes cellulolytic activity and systems in basal hexapod groups. As part of a screening effort to identify insects with highly active cellulolytic systems, we have for the first time, identified species ...
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#1Benjamin Wipfler (FSU: University of Jena)H-Index: 17
#2Harald Letsch (University of Vienna)H-Index: 12
Last. Sabrina Simon (WUR: Wageningen University and Research Centre)H-Index: 12
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Polyneoptera represents one of the major lineages of winged insects, comprising around 40,000 extant species in 10 traditional orders, including grasshoppers, roaches, and stoneflies. Many important aspects of polyneopteran evolution, such as their phylogenetic relationships, changes in their external appearance, their habitat preferences, and social behavior, are unresolved and are a major enigma in entomology. These ambiguities also have direct consequences for our understanding of the evoluti...
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#1Dominic A. Evangelista (UT: University of Tennessee)H-Index: 6
#2Benjamin Wipfler (FSU: University of Jena)H-Index: 17
Last. Sabrina Simon (WUR: Wageningen University and Research Centre)H-Index: 12
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Phylogenetic relationships among subgroups of cockroaches and termites are still matters of debate. Their divergence times and major phenotypic transitions during evolution are also not yet settled. We addressed these points by combining the first nuclear phylogenomic study of termites and cockroaches with a thorough approach to divergence time analysis, identification of endosymbionts, and reconstruction of ancestral morphological traits and behaviour. Analyses of the phylogenetic relationships...
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Background Body plan development in multi-cellular organisms is largely determined by homeotic genes. Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer blocking IBPs have been identified in vertebrates, the common fruit fly Drosophila melanogaster harbors at least twelve different enhancer blocking IBPs. We screened recently compiled insect transcriptomes from the 1KITE project and genomic and transcriptomic data from pu...
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#1Duane D. McKenna (U of M: University of Memphis)H-Index: 17
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Background Relatively little is known about the genomic basis and evolution of wood-feeding in beetles. We undertook genome sequencing and annotation, gene expression assays, studies of plant cell wall degrading enzymes, and other functional and comparative studies of the Asian longhorned beetle, Anoplophora glabripennis, a globally significant invasive species capable of inflicting severe feeding damage on many important tree species. Complementary studies of genes encoding enzymes involved in ...
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#1Sudhir Kumar (TU: Temple University)H-Index: 65
#2Glen Stecher (TU: Temple University)H-Index: 7
Last. Koichiro Tamura (Tokyo Metropolitan University)H-Index: 29
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Abstract We present the latest version of the Molecular Evolutionary Genetics Analysis (Mega) software, which contains many sophisticated methods and tools for phylogenomics and phylomedicine. In this major upgrade, Mega has been optimized for use on 64-bit computing systems for analyzing larger datasets. Researchers can now explore and analyze tens of thousands of sequences in Mega The new version also provides an advanced wizard for building timetrees and includes a new functionality to automa...
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#1Matan Shelomi (MPG: Max Planck Society)H-Index: 10
#2Etienne G. J. Danchin (CNRS: Centre national de la recherche scientifique)H-Index: 38
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Genes acquired by horizontal transfer are increasingly being found in animal genomes. Understanding their origin and evolution requires knowledge about the phylogenetic relationships from both source and recipient organisms. We used RNASeq data and respective assembled transcript libraries to trace the evolutionary history of polygalacturonase (pectinase) genes in stick insects (Phasmatodea). By mapping the distribution of pectinase genes on a Polyneoptera phylogeny, we identified the transfer o...
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#1Roy Kirsch (MPG: Max Planck Society)H-Index: 9
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Pectin is the most complex polysaccharide in nature and highly abundant in plant cell walls and middle lamellae, where it functions in plant growth and development. Phytopathogens utilize plant pectin as an energy source through enzyme-mediated degradation. These pectolytic enzymes include polygalacturonases (PGs) of the GH28 family and pectin methylesterases (PMEs) of the CE8 family. Recently, PGs were also identified in herbivorous insects of the distantly related plant bug, stick insect and P...
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The Phasmatodea (stick insects) have multiple, endogenous, highly expressed copies of glycoside hydrolase family 9 (GH9) genes. The purpose for retaining so many was unknown. We cloned and expressed the enzymes in transfected insect cell lines, and tested the individual proteins against different plant cell wall component poly- and oligosaccharides. Nearly all isolated enzymes were active against carboxymethylcellulose, however most could also degrade glucomannan, and some also either xylan or x...
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#1Matan Shelomi (NTU: National Taiwan University)H-Index: 10
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The coconut rhinoceros beetle, Oryctes rhinoceros, is a major pest of palm crops in tropical Asia and the Pacific Islands. Little molecular data exists for this pest, impeding our ability to develop effective countermeasures and deal with the species鈥 growing resistance to viral biocontrols. We present the first molecular biology analyses of this species, including a metagenomic assay to understand the microbiome of different sections of its digestive tract, and a transcriptomics assay to comple...
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#1Gaku Tokuda (University of the Ryukyus)H-Index: 27
Abstract The ability of insects to digest recalcitrant plant cell walls greatly contributes to their success worldwide. Most herbivorous insects, including phytophagous, saprophagous, and xylophagous taxa, can produce their own digestive enzymes to decompose plant cell walls, providing them an advantage by allowing for the digestion of plant biomass. Recent research using techniques involving genomics, transcriptomics, proteomics, and/or metabolomics has been offering comprehensive understanding...
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