Duplication with variation
Metameric logic in evolution from genes to morphology
Bibliographic Data
| ID | 8317840 |
|---|---|
| Authors | K M Wei (0000-0002-2528-9993, Pennsylvania State University, corresponding author), Kenneth M Weiss |
| Year | 1990 |
| Volume | 33 |
| Issue | S11 |
| Pages | 1-23 |
| Publication date | 1990-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330330503 |
| OpenAlex | W1975439022 |
| Language | EN |
| Citations received | 20 |
| References cited | 36 |
This paper discusses the use of duplicated structures in evolution. Duplication, followed by variation and modification of function, has been a major strategy from the time of the early biological molecules to the evolution of advanced morphological complexity. Evolution by duplication with variation produces a hierarchically structured organizational logic based on nested segments, or metameres. The genome is itself largely structured in this way by the process of gene duplication. Duplicate genes often maintain related function and even chromosomal arrangement, and the expression of those related genes may be coordinated, often by regulatory genes, which are themselves the products of gene duplication. The morphology of complex metazoan organisms has evolved in a metameric way from early in evolution, by the use of repeat units in histology and repeated morphological segments. Recent advances in genetics have shown that there is a direct correspondence between these morphological structures and metameric structures in the genome, suggesting how complex morphology was produced by evolution at the gene level. Examples from invertebrates and vertebrates show that homologous processes are involved in morphogenesis in both groups, with strictly homologous developmental genes retaining very similar function and regulation. These issues are highly relevant to an improved understanding of macroevolution and to the core questions of biological anthropology. The evolution of dental morphology is discussed as an example
Adaptation (eye) · Biology · Convergent evolution · Evolutionary biology · Function (biology) · Gene · Gene duplication · Gene family · Genome · Macroevolution · Morphogenesis · Morphology (biology) · Phylogenetics · dental development and anomalies · Developmental Biology and Gene Regulation · Genetic diversity and population structure · Genetics
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Intra‐individual metameric variation expressed at the enamel‐dentine junction of lower post‐canine dentition of South African fossil hominins and modern humans
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Recent trends in genetic research on captive and wild nonhuman primate populations
Associations between Carabelli trait and cusp areas in human permanent maxillary first molars
Mesiodistal tooth crown dimensions of the primary dentition
Identifying metameric variation in extant hominoid and fossil hominid mandibular molars
Protostylid variation in Australopithecus
Metameric variation of upper molars in hominoids and its implications for the diversification of molar morphogenesis
| Unique citing works | 20 |
|---|---|
| Citations per year | 0,57 |
| Citation span | 1991 - 2020 (30) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 19 |