Tcmof REGULATES LARVAL/PUPAL DEVELOPMENT AND FEMALE FECUNDITY IN RED FLOUR BEETLE, Tribolium castaneum
2015
Wang, Yanyun | Li, Chengjun | Sang, Ming | Li, Bin
Males absent on the first (MOF) was originally identified as an essential component of the X chromosome dosage compensation system in Drosophila melanogaster, and is also a member of the MYST family of histone acetyltransferases. MOF has been extensively studied in D. melanogaster and mammals. However, whether MOF is involved in dosage compensation and/or other vital functions for newly emerging model insects such as Tribolium castaneum, is unclear. We cloned the mof from T. castaneum, named Tcmof. Phylogenetic analysis revealed that mof is highly conserved in eukaryotes but lost in birds. qPCR showed that Tcmof was most highly expressed in the early embryo stage and equally expressed in males and females. Treating larvae with ds‐Tcmof led 79.1% of the insects to arrest during its eclosion; the remaining insects died either in the larval stage or immediately following eclosion. Treating pupae with the same construct eliminated the fertility of T. castaneum. This effect was rescued by reciprocal crosses with wild‐type females, but not males. We infer that the mof gene is essential for larval/pupal development and female fertility in T. castaneum.
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