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Alessandro Minelli1, Gregory D Edgecombe2
1Department of Biology, Universitá di Padova, Via Ugo Bassi 58 B, I 35131 Padova, Italy.
Current Biology : CB
|March 15, 2022
Summary
The number of segments in the record-breaking, most-leggy millipede species varies, supporting a multiplicative model for how millipedes grow new body segments.
Area of Science:
- Zoology
- Developmental Biology
- Evolutionary Biology
Background:
- Millipedes (Diplopoda) exhibit extreme variation in body segment number.
- Understanding segment generation is key to myriapod evolution and development.
Purpose of the Study:
- To investigate the variability of segment numbers in a species of the world's most-leggy millipede.
- To provide evidence for or against different models of segment generation in myriapods.
Main Methods:
- Field collection of millipede specimens.
- Morphological analysis of segment counts across individuals.
Main Results:
- Observed significant variability in segment numbers within the studied millipede species.
- This variability is consistent with a multiplicative segment generation model.
Conclusions:
- The findings support a multiplicative mode of segment generation in myriapods.
- Variability in segment number is a key feature in millipede development.
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