A Role for buttonhead in the Early Head and Trunk Development in the Beetle Tribolium castaneum

Thehead gap gene ( ) is required for the patterning of head segments in the early embryo. Mutant phenotypes of display a gap-like phenotype in which antennal, intercalary, mandibular and the anterior portion of the maxillary segmentsare eliminated. In agreement with the phenotypes, is expressed in a...

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Published inBalsaeng'gwa saengsig Vol. 23; no. 1; pp. 63 - 72
Main Authors Jeon, Haewon, O, Jiyun, Jin, Sil, Lim, Jinsung, Choe, Chong Pyo
Format Journal Article
LanguageEnglish
Published Korea (South) Korean Society of Developmental Biology 01.03.2019
한국발생생물학회
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Summary:Thehead gap gene ( ) is required for the patterning of head segments in the early embryo. Mutant phenotypes of display a gap-like phenotype in which antennal, intercalary, mandibular and the anterior portion of the maxillary segmentsare eliminated. In agreement with the phenotypes, is expressed in a stripe covering the head segments at the blastoderm stage. During the early phase of the germband extension, is expressed in stripes with single segmental periodicity, which is required for the formation of the peripheral nervous system. In contrast to the key role of in embryonic development, it has been suggested that ortholog of ( ) is dispensable for embryonic head development. In order for better understanding of the requirement of in the early embryo, we re-analyzed the expression patterns and functions of during embryonic segmentation. is expressed in segmental stripes at the stages of blastoderm and germband elongation. Up to 28.3% of embryos in which is knocked down displays the loss of antennal, mandibular and the pregnathal regions in the head, with abdominal segments being disrupted in the trunk. Our findings suggest that is required for the head and trunk development in the early embryo.
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The authors declare that they have no conflict of interest.
ISSN:2465-9525
2465-9541
DOI:10.12717/DR.2019.23.1.063