“…Danio pigment patterns offer an outstanding opportunity to learn about the genetic and cellular mechanisms underlying trait evolution, given their largely two-dimensional organization, tractable number of cell types, accessibility to imaging as phenotypes are developing, and approaches available for interrogating developmental genetic mechanisms and modeling pigment cell behaviors ( McCluskey et al, 2021 ; Moreira and Deutsch, 2005 ; Nakamasu et al, 2009 ; Owen et al, 2020 ; Patterson et al, 2014 ; Patterson and Parichy, 2019 ; Podobnik et al, 2020 ; Spiewak et al, 2018 ; Volkening and Sandstede, 2015 , 2018 ; Watanabe and Kondo, 2015b ; Yamanaka and Kondo, 2014 ). Given their developmental origins, these patterns may inform our understanding of species differences in other neural crest derived traits as well.…”