Journal
BMC BIOLOGY
Volume 19, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12915-021-01110-4
Keywords
Animal locomotion; Larval crawling; The genus Drosophila; Kinematics; Evolution
Categories
Funding
- MEXT/JSPS KAKENHI [17K19439, 19H04742, 20H05048, 17 K07042, 20 K06908]
- Grants-in-Aid for Scientific Research [19H04742, 17K19439, 20H05048] Funding Source: KAKEN
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The study revealed that the locomotion kinetics of Drosophila larvae diverge among species and are correlated with habitat temperature rather than body length. Phylogenetic analyses using Bayesian inference indicated diverse evolutionary rates of kinematics in different phylogenetic branches.
Background Speed and trajectory of locomotion are the characteristic traits of individual species. Locomotion kinematics may have been shaped during evolution towards increased survival in the habitats of each species. Although kinematics of locomotion is thought to be influenced by habitats, the quantitative relation between the kinematics and environmental factors has not been fully revealed. Here, we performed comparative analyses of larval locomotion in 11 Drosophila species. Results We found that larval locomotion kinematics are divergent among the species. The diversity is not correlated to the body length but is correlated instead to the habitat temperature of the species. Phylogenetic analyses using Bayesian inference suggest that the evolutionary rate of the kinematics is diverse among phylogenetic tree branches. Conclusions The results of this study imply that the kinematics of larval locomotion has diverged in the evolutionary history of the genus Drosophila and evolved under the effects of the ambient temperature of habitats.
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