A new group of interstitial worms, Lobatocerebridae nov. fam. (Annelida) and its significance for metazoan phylogeny

1980 ◽  
Vol 95 (1) ◽  
pp. 41-84 ◽  
Author(s):  
R. M. Rieger
Keyword(s):  
Metazoan Phylogeny

Regeneration across Metazoan Phylogeny: Lessons from Model Organisms

2015 ◽  
Vol 42 (2) ◽  
pp. 57-70 ◽  
Author(s):  
Qiao Li ◽  
Hao Yang ◽  
Tao P. Zhong
Keyword(s):  
Model Organisms ◽  
Metazoan Phylogeny

scholarly journals Extensive intraspecies cryptic variation in an ancient embryonic gene regulatory network

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Yamila N Torres Cleuren ◽  
Chee Kiang Ewe ◽  
Kyle C Chipman ◽  
Emily R Mears ◽  
Cricket G Wood ◽  
...  
Keyword(s):  
Gene Regulatory Networks ◽  
Regulatory Networks ◽  
Recombinant Inbred Lines ◽  
Single Species ◽  
C Elegans ◽  
Cryptic Variation ◽  
Absolute Requirement ◽  
Natural Isolates ◽  
Gene Regulatory ◽  
Metazoan Phylogeny

Innovations in metazoan development arise from evolutionary modification of gene regulatory networks (GRNs). We report widespread cryptic variation in the requirement for two key regulatory inputs, SKN-1/Nrf2 and MOM-2/Wnt, into the C. elegans endoderm GRN. While some natural isolates show a nearly absolute requirement for these two regulators, in others, most embryos differentiate endoderm in their absence. GWAS and analysis of recombinant inbred lines reveal multiple genetic regions underlying this broad phenotypic variation. We observe a reciprocal trend, in which genomic variants, or knockdown of endoderm regulatory genes, that result in a high SKN-1 requirement often show low MOM-2/Wnt requirement and vice-versa, suggesting that cryptic variation in the endoderm GRN may be tuned by opposing requirements for these two key regulatory inputs. These findings reveal that while the downstream components in the endoderm GRN are common across metazoan phylogeny, initiating regulatory inputs are remarkably plastic even within a single species.

Metazoan Phylogeny

2007 ◽  
pp. 17-40
Author(s):  
R.A. Jenner
Keyword(s):  
Metazoan Phylogeny

MicroRNAs and metazoan phylogeny: big trees from little genes

2009 ◽  
pp. 157-170 ◽  
Author(s):  
Erik A. Sperling ◽  
Kevin J. Peterson
Keyword(s):  
Metazoan Phylogeny

scholarly journals Problematica old and new

2008 ◽  
Vol 363 (1496) ◽  
pp. 1503-1512 ◽  
Author(s):  
Ronald A Jenner ◽  
D.Timothy J Littlewood
Keyword(s):  
Molecular Phylogenetics ◽  
Body Plan ◽  
Phylogeny Reconstruction ◽  
Phylogenetic Placement ◽  
Genomic Markers ◽  
Body Plan Evolution ◽  
Metazoan Phylogeny

Problematica are taxa that defy robust phylogenetic placement. Traditionally the term was restricted to fossil forms, but it is clear that extant taxa may be just as difficult to place, whether using morphological or molecular (nucleotide, gene or genomic) markers for phylogeny reconstruction. We discuss the kinds and causes of Problematica within the Metazoa, as well as criteria for their recognition and possible solutions. The inclusive set of Problematica changes depending upon the nature and quality of (homologous) data available, the methods of phylogeny reconstruction and the sister taxa inferred by their placement or displacement. We address Problematica in the context of pre-cladistic phylogenetics, numerical morphological cladistics and molecular phylogenetics, and focus on general biological and methodological implications of Problematica, rather than presenting a review of individual taxa. Rather than excluding Problematica from phylogeny reconstruction, as has often been preferred, we conclude that the study of Problematica is crucial for both the resolution of metazoan phylogeny and the proper inference of body plan evolution.

Pan-metazoan phylogeny of the DMRT gene family: a framework for functional studies

2014 ◽  
Vol 224 (3) ◽  
pp. 175-181 ◽  
Author(s):  
Judith R. Wexler ◽  
David C. Plachetzki ◽  
Artyom Kopp
Keyword(s):  
Gene Family ◽  
Functional Studies ◽  
Metazoan Phylogeny

Deep metazoan phylogeny: When different genes tell different stories

2013 ◽  
Vol 67 (1) ◽  
pp. 223-233 ◽  
Author(s):  
Tetyana Nosenko ◽  
Fabian Schreiber ◽  
Maja Adamska ◽  
Marcin Adamski ◽  
Michael Eitel ◽  
...  
Keyword(s):  
Metazoan Phylogeny

Metazoan phylogeny and the Cambrian radiation

1991 ◽  
Vol 6 (4) ◽  
pp. 131-134 ◽  
Author(s):  
Douglas H. Erwin
Keyword(s):  
Cambrian Radiation ◽  
Metazoan Phylogeny

The grand game of metazoan phylogeny: rules and strategies

1999 ◽  
Vol 74 (2) ◽  
pp. 121-142 ◽  
Author(s):  
RONALD A. JENNER ◽  
FREDERICK R. SCHRAM
Keyword(s):  
Metazoan Phylogeny

Gastrotricha and metazoan phylogeny

2003 ◽  
Vol 32 (1) ◽  
pp. 61-81 ◽  
Author(s):  
Jan Zrzavy
Keyword(s):  
Metazoan Phylogeny
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