Journal article

Publication year: 2006

Pages: 129-137

Journal: Norwegian journal of entomology

Volume number: 53

Issue number: 2

URL: http://www.entomologi.no/journals/nje/nje.htm

Publisher: Norwegian Entomological Society

Abstract: 

Some arthropods display a discrepancy in the number of ventral and dorsal
metameric structures. The trunk of millipedes (Diplopoda) has more sternites
and leg pairs on the ventral side than tergites on the dorsal side. As the
metameric body plan is laid down during embryonic development, an analysis of
genes that play a role in the formation of the segmental structures may give
insights into the origin of this dorso-ventral discrepancy. We have previously
analysed a number of segmentation genes in the millipede Glomeris marginataand
were able to show that these genes display different expression patterns
ventrally compared to the dorsal side. Here we summarize the data on the
expression of segment polarity genes and Hox genes, and in addition show the
analysis of additional genes that encode the T-box transcription factors H15-1
and H15-2. All hitherto examined Glomerissegmentation genes including the two H15genes
show a remarkable difference in dorsal and ventral expression patterns. This
result suggests that there must be a decoupling of dorsal and ventral
segmentation processes in this millipede and provides an explanation for the
discrepancy in the number of dorsal and ventral structures. This decoupling has
important implications for the alignment of tergites and sternites/leg
pairs in diplopods.

Harvard Citation style: Janssen, R., Prpic, N. and Damen, W. (2006) Dorso-ventral differences in gene expression in Glomeris marginata (Villers, 1789) (Myriapoda: Diplopoda), Norwegian journal of entomology, 53(2), pp. 129-137. http://www.entomologi.no/journals/nje/nje.htm

APA Citation style: Janssen, R., Prpic, N., & Damen, W. (2006). Dorso-ventral differences in gene expression in Glomeris marginata (Villers, 1789) (Myriapoda: Diplopoda). Norwegian journal of entomology. 53(2), 129-137. http://www.entomologi.no/journals/nje/nje.htm