Abstract:
:Morphological transformations can be generated by evolutionary changes in the sequence of developmental events. In this study, we examined the evolutionary dynamics of the developmental sequence on a macroevolutionary scale in teleosts. Using the information from previous reports describing the development of 31 species, we extracted the developmental sequences of 19 landmark events involving the formation of phylogenetically conserved body parts; we then inferred ancestral developmental sequences by two different parsimony-based methods-event-pairing and continuous analysis. The phylogenetic comparisons of these sequences revealed event-dependent heterogeneity in the frequency of sequence changes. Most of the sequence changes occurred as exchanges of temporally neighboring events. These heterochronic changes in developmental sequences accumulated along evolutionary time, but the precise distribution of the changes over the teleostean phylogeny remains unclear due to technical limitations.
journal_name
Evol Devjournal_title
Evolution & developmentauthors
Ito F,Matsumoto T,Hirata Tdoi
10.1111/ede.12288subject
Has Abstractpub_date
2019-05-01 00:00:00pages
120-134issue
3eissn
1520-541Xissn
1525-142Xjournal_volume
21pub_type
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