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Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques

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Published on: June 30, 2017

Cell types as species: Exploring a metaphor.

¹Section of Plant Biology and Section of Plant Breeding and Genetics, School of Integrative Plant Science, Cornell University, Ithaca, NY, United States.

Frontiers in Plant Science

|September 8, 2022

Summary

This summary is machine-generated.

The definition of cell types is debated, with continuous variation challenging discrete classifications. Parallels with species definitions in evolutionary biology offer new perspectives for cell biology research.

Keywords:

cell lineage cell state cell type phylogeny single cell transcriptomics species concepts

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Last Updated: Aug 29, 2025

Discrimination and Characterization of Heterocellular Populations Using Quantitative Imaging Techniques

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Published on: June 30, 2017

Isolation and Transcriptome Analysis of Plant Cell Types

Isolation and Transcriptome Analysis of Plant Cell Types

Published on: April 7, 2023

Droplet Barcoding-Based Single Cell Transcriptomics of Adult Mammalian Tissues

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Published on: January 10, 2019

Area of Science:

Cell Biology
Evolutionary Biology
Systematics

Background:

The concept of "cell type" is fundamental yet controversial in cell biology.
Historical classifications based on morphology, physiology, or location are challenged by new data.
Single-cell transcriptomics reveal continuous variation, questioning discrete cell type definitions.

Purpose of the Study:

To explore the metaphor of "cell types as species" to address definitional challenges in cell biology.
To highlight parallels between cell type differentiation and species divergence.
To inspire cross-disciplinary solutions for classifying biological variation.

Main Methods:

Comparative analysis of conceptual frameworks in cell biology and systematics.
Examination of philosophical debates on classification (individuals vs. groups).
Review of molecular data's impact on defining biological entities in both fields.

Main Results:

Significant parallels exist between defining cell types and species, including lineage dynamics (trees/networks).
Both fields grapple with continuous variation versus discrete categories.
Philosophical underpinnings of classification (e.g., homeostatic property clusters) are relevant to both.

Conclusions:

The "cell types as species" metaphor provides a valuable framework for understanding cell variation.
Cross-disciplinary insights can advance models of cell differentiation and evolutionary divergence.
Further exploration of these parallels may yield novel solutions for biological classification.