Deep homology: A view from systematics

@article{Scotland2010DeepHA,
  title={Deep homology: A view from systematics},
  author={Robert W. Scotland},
  journal={BioEssays},
  year={2010},
  volume={32}
}
Over the past decade, it has been discovered that disparate aspects of morphology – often of distantly related groups of organisms – are regulated by the same genetic regulatory mechanisms. Those discoveries provide a new perspective on morphological evolutionary change. A conceptual framework for exploring these research findings is termed ‘deep homology’. A comparative framework for morphological relations of homology is provided that distinguishes analogy, homoplasy, plesiomorphy and… 

Using Genetic Networks and Homology to Understand the Evolution of Phenotypic Traits

It is argued that biological homology, as evidenced by a conserved gene regulatory network giving a trait its “essential identity” (a Character Identity Network or “ChIN”) must also be a taxic homologies, undisguised.

Homology in Character Evolution

This work explains homology as a result of shared ancestry that reflects modifications in characteristics within related lineages as well as using changes in homologous characteristics to infer evolution within groups (phylogenetics).

A Logical Model of Homology for Comparative Biology

This work assembled a collection of homology assertions from the literature with a set of taxon phenotypes for vertebrate fins and limbs from the Phenoscape Knowledgebase and evaluated the reasoning ramifications of two logical models.

The Search for Common Origin: Homology Revisited

A framework to define homologies making use of existing terms, which refer to homology in different fields, but restricting them to an unambiguous meaning and a particular hierarchical level is proposed.

Homology, homoplasy, novelty, and behavior.

  • B. Hall
  • Biology
    Developmental psychobiology
  • 2013
The transition to an evolutionary approach to homology in which all classes of similarity are interpreted against the single branching tree of life is sketched out, and the evidence for the application of homology across all levels and features of the biological hierarchy, including behavior is outlined.

The contemporary concepts of homology in biology: A theoretical review

A review of the contemporary theoretical concepts of homology addresses the following issues: the ontological status of homology (nominalistic, realistic, and conceptualistic interpretations); the

LOCATING EVOLUTIONARY PRECURSORS ON A PHYLOGENETIC TREE

A new stochastic model is developed, which explicitly captures the dependency implied by a precursor and permits estimation of precursor locations, and applies it to the evolution of extrafloral nectaries (EFNs), an ecologically significant trait mediating a widespread mutualism between plants and ants.

Evolutionary developmental biology: Ghost locus appears

The sequences of two sponge genomes provide evidence that the ParaHox developmental genes are older than previously thought and highlights the need to examine the genomes of many different sponge lineages to obtain a more complete picture of the ancestral animal complement of Antennapedia genes.

Evolution of centralized nervous systems: Two schools of evolutionary thought

  • R. Northcutt
  • Biology
    Proceedings of the National Academy of Sciences
  • 2012
Analysis of brain–body complexity among extant bilaterians indicates that diffuse nerve nets and possibly, ganglionated cephalic neural systems existed in Ediacaran organisms, and the hypothesis of a tripartite brain, based primarily on phenetic analysis of developmental genetic data, indicates that the brain arose in the last common bilaterian ancestor.

Evolution of centralized nervous systems: Two schools of evolutionary thought

Analysis of brain–body complexity among extant bilaterians indicates that diffuse nerve nets and possibly, ganglionated cephalic neural systems existed in Ediacaran organisms, and the hypothesis of a tripartite brain, based primarily on phenetic analysis of developmental genetic data, indicates that the brain arose in the last common bilaterian ancestor.
...

References

SHOWING 1-10 OF 101 REFERENCES

Homology and the hierarchy of biological systems.

  • R. Sommer
  • Biology
    BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2008
It is argued that continuity and hierarchy are separate but equally important issues of homology.

Biological hierarchies and the concept of homology.

It is argued that attempts to reduce behavioral homology to morphological homologies, and morphologicalHomology to genetic and developmental homologies are misguided and based on a failure to recognize the hierarchical nature of biological organization.

Descent with modification: the unity underlying homology and homoplasy as seen through an analysis of development and evolution

  • B. Hall
  • Biology
    Biological reviews of the Cambridge Philosophical Society
  • 2003
This review compares features classified homologous with the classes of features normally grouped as homoplastic, the latter being convergence, parallelism, reversals, rudiments, vestiges, atavisms, and atavism, with convergence as the only class of homoplasy.

BIOLOGICAL BASIS OF HOMOLOGY

The development and variation of pectoral fin hooks in blenniid fishes is presented as a model for the study of a simple ontogenetic network.

Establishing homology criteria for regulatory gene networks: prospects and challenges.

It is proposed that genetic networks can be treated as a distinct level of biological organization, and can be analysed together with other hierarchical levels, such as genes, embryonic origins and morphological structures, in a comparative framework.

Evolutionary dissociations between homologous genes and homologous structures.

  • G. Wray
  • Biology
    Novartis Foundation symposium
  • 1999
The lack of a simple and consistent relationship between homologous genes and structures has important implications for understanding correlations between evolutionary changes at different levels of biological organization.

The Role of Developmental Genetics in Understanding Homology and Morphological Evolution in Plants

This work examines the role of APETALA3 and PISTILLATA homologs in the development of petaloid organs, and provides some guidelines for the critical examination of comparative gene expression data in the context of studying morphological innovations.
...