Integrated species-phenon trees: visualizing infraspecific diversity within lineages.

Autor: Zehady AK; Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, USA., Fordham BG; Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia. barry.fordham@anu.edu.au., Ogg JG; Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, USA.; State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan, China.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2019 Dec 12; Vol. 9 (1), pp. 18968. Date of Electronic Publication: 2019 Dec 12.
DOI: 10.1038/s41598-019-55435-w
Abstrakt: The unprecedented detail with which contemporary molecular phylogenetics are visualizing infraspecific relationships within living species and species complexes cannot as yet be reliably extended into deep time. Yet paleontological systematics has routinely dealt in (mainly) morphotaxa envisaged in various ways to have been components of past species lineages. Bridging these perspectives can only enrich both. We present a visualization tool that digitally depicts infraspecific diversity within species through deep time. Our integrated species-phenon tree merges ancestor-descendant trees for fossil morphotaxa (phena) into reconstructed phylogenies of lineages (species) by expanding the latter into "species boxes" and placing the phenon trees inside. A key programming strategy to overcome the lack of a simple overall parent-child hierarchy in the integrated tree has been the progressive population of a species-phenon relationship map which then provides the graphical footprint for the overarching species boxes. Our initial case has been limited to planktonic foraminfera via Aze & others' important macroevolutionary dataset. The tool could potentially be appropriated for other organisms, to detail other kinds of infraspecific granularity within lineages, or more generally to visualize two nested but loosely coupled trees.
Databáze: MEDLINE
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