Fig. 4: The conserved homeobox gene clusters and their expression and regulation in E. sinensis. | Nature Communications

Fig. 4: The conserved homeobox gene clusters and their expression and regulation in E. sinensis.

From: The Chinese mitten crab genome provides insights into adaptive plasticity and developmental regulation

Fig. 4

a Genomic organization of Hox genes in E. sinensis and selected arthropods. Different colored boxes indicate different Hox gene groups, including anterior (green), central (blue), and posterior (purple). Red shapes indicate the position of miR-993, miR-10 and miR-iab-4/8 genes. Split lines indicate that the cluster is located on different scaffolds. Oblique lines indicate the regions of the Hox cluster that are non-contiguous or interrupted on the same scaffold. b Temporal expression of E. sinensis Hox cluster genes. Fe fertilized egg, Cs 2–4 cell stage, Bs blastula stage, Gs gastrula stage, Ozs original zoea stage, Z1 zoea I, Z5 zoea V, EM early megalopa stage, LM late megalopa stage, J1 the first juvenile instar. c The expression and comparison of Ubx, Abd-A, and Abd-B genes in shrimp L. vannamei, lobster S. verreauxi and crab E. sinensis. The photo of S. verreauxi was provided by John Booth, National Institute of Water and Atmospheric Research, New Zealand. d The expression of posterior Hox genes (Ubx, Abd-A, and Abd-B) and miRNAs (miR-iab-4 and miR-iab-8) in the cephalothorax and abdomen of the late megalopa (LM) and juvenile instar (J1) stages. LMC represents the cephalothorax of LM, and LMA represents the abdomen of LM, J1C represents the cephalothorax of J1, J1A represents the abdomen of J1. Error bars represent the mean ± S.D. (n = 3 in Hox expression and n = 4 in miRNA expression). Significant differences across LMA (two-tailed Student’s t-test) are indicated with an asterisk at P < 0.05, and two asterisks at P < 0.01. e The speculative regulation process of the posterior Hox gene during the brachyurization metamorphosis in E. sinensis.

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