Expression of Hox genes in deuterostomes – the Hox gene cluster is duplicated in vertebrates. There are eight Hox gene clusters in teleost fishes, showing an additional duplication from the four Hox gene clusters found in the tetrapod vertebrates. (Credit: B J Swalla, Heredity) #NPG
Fireflies! New Work Shines Light on Hox Genes Responsible for Firefly Lantern Development - NeuroscienceNews.com Notion that Hox genes acquire new roles quickly, without compromising old ones, is novel. A firefly’s photic organ is functional throughout pupation and glows when the pupa is disturbed. Credit Armin Moczek and Matthew Stansbury.