Callorhinchus milii Xenopus (Silurana) tropicalis Xenopus laevis Salmo salar Rana catesbeiana Xenopus laevis Salmo salar Xenopus laevis Oryzias latipes3E-33 3E-33 1E-90 5E-05 1E-63 6E-07 2E-20 2E-20 4E-25 7E-10 3E-30 1E-60 2E-21 6E-07 3E-10 7E-16 9E-11 3E-30 2E-11 2E-07 8E-10 8 1 1 1 2 1 6 2 16 1 8 1 1 4 3 24 5 1 1wap65-likeJZOryzias latipes8E-Unclassifiedwap65-likeJZOryzias latipes8E-Unclassifiedtob1bJZDanio rerio2E-Unclassifiedmonths of aestivation. The mRNA expression levels of some genes involved in complement activation, blood coagulation and iron transport were also down-regulated (Table 3). Relative quantification of mRNA expression levels of selected genes were performed using qPCR to verify the up- or down-regulated of selected genes. In agreement with the SSH resultsPLOS ONE | DOI:10.1371/journal.pone.0121224 March 30,10 /Differential Gene Expression in the Liver of the African Lungfishof the forward library, there were significant increases in the mRNA expression levels of bhmt1, fh, ass1, cps III in the liver of P. annectens after 6 months of ABT-737 chemical information aestivation (Fig. 1A-D). In addition, there were significant decreases in the mRNA expression levels of sod1 and cp in corroboration of the SSH results (Fig. 1E and F).SSH libraries from liver of P. annectens after 1 day of arousal from 6 months of aestivation (with 6 months of aestivation as the driver)Similarly, forward (Table 4) and reverse (Table 5) libraries were constructed to reflect the genes that were up- and down-regulated, buy WP1066 respectively, in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. A total of 143 genes were identified from these subtraction libraries, in which 76 genes were up-regulated (Table 4) and 67 genes were down-regulated (Table 5). Out of these 1000 sequences obtained, 391 were unidentified and they could again be genes that are yet to be characterized in P. annectens. Fructose-bisphosphate aldolase B (aldob) and some genes related to ribosomal proteins appeared in both forward and reverse subtraction libraries, indicating that they could be false positives or encoding for different isoforms of the same protein. As revealed by the forward library (up-regulation), the mRNA expressions of aldob and ass1, related to carbohydrate and nitrogen metabolism, respectively, were up-regulated in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. Some genes involved in lipid metabolism (acd, desaturase 2, fatty acid binding protein and stearoyl-CoA desaturase), ATP synthesis and iron metabolism (ftl, ferritin middle subunit and transferrin-a) were also up-regulated (Table 4). The reverse library (down-regulation) revealed that the down-regulation of expression levels of certain genes related to carbohydrate metabolism (aldob and plasma alpha-L-fucosidase precursor putative) in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. The mRNA expression levels of some genes related to protein synthesis, signaling and iron metabolism (alpha globin chain, ferritin heavy chain and transferrin) were also down-regulated (Table 5). In support of the SSH results, there were significant increases in the mRNA expression levels of acd, ftl and gapdh in the liver of P. annectens after 1 day of arousal from 6 months of aestivation as confirmed by qPCR (Fig. 1G-I).Discussion Maintenance phase: up-regulation of ornithine-urea cycle (OUC) capacityAfrican lungfishes are ureogenic and they possess a full compleme.Callorhinchus milii Xenopus (Silurana) tropicalis Xenopus laevis Salmo salar Rana catesbeiana Xenopus laevis Salmo salar Xenopus laevis Oryzias latipes3E-33 3E-33 1E-90 5E-05 1E-63 6E-07 2E-20 2E-20 4E-25 7E-10 3E-30 1E-60 2E-21 6E-07 3E-10 7E-16 9E-11 3E-30 2E-11 2E-07 8E-10 8 1 1 1 2 1 6 2 16 1 8 1 1 4 3 24 5 1 1wap65-likeJZOryzias latipes8E-Unclassifiedwap65-likeJZOryzias latipes8E-Unclassifiedtob1bJZDanio rerio2E-Unclassifiedmonths of aestivation. The mRNA expression levels of some genes involved in complement activation, blood coagulation and iron transport were also down-regulated (Table 3). Relative quantification of mRNA expression levels of selected genes were performed using qPCR to verify the up- or down-regulated of selected genes. In agreement with the SSH resultsPLOS ONE | DOI:10.1371/journal.pone.0121224 March 30,10 /Differential Gene Expression in the Liver of the African Lungfishof the forward library, there were significant increases in the mRNA expression levels of bhmt1, fh, ass1, cps III in the liver of P. annectens after 6 months of aestivation (Fig. 1A-D). In addition, there were significant decreases in the mRNA expression levels of sod1 and cp in corroboration of the SSH results (Fig. 1E and F).SSH libraries from liver of P. annectens after 1 day of arousal from 6 months of aestivation (with 6 months of aestivation as the driver)Similarly, forward (Table 4) and reverse (Table 5) libraries were constructed to reflect the genes that were up- and down-regulated, respectively, in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. A total of 143 genes were identified from these subtraction libraries, in which 76 genes were up-regulated (Table 4) and 67 genes were down-regulated (Table 5). Out of these 1000 sequences obtained, 391 were unidentified and they could again be genes that are yet to be characterized in P. annectens. Fructose-bisphosphate aldolase B (aldob) and some genes related to ribosomal proteins appeared in both forward and reverse subtraction libraries, indicating that they could be false positives or encoding for different isoforms of the same protein. As revealed by the forward library (up-regulation), the mRNA expressions of aldob and ass1, related to carbohydrate and nitrogen metabolism, respectively, were up-regulated in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. Some genes involved in lipid metabolism (acd, desaturase 2, fatty acid binding protein and stearoyl-CoA desaturase), ATP synthesis and iron metabolism (ftl, ferritin middle subunit and transferrin-a) were also up-regulated (Table 4). The reverse library (down-regulation) revealed that the down-regulation of expression levels of certain genes related to carbohydrate metabolism (aldob and plasma alpha-L-fucosidase precursor putative) in the liver of P. annectens after 1 day of arousal from 6 months of aestivation. The mRNA expression levels of some genes related to protein synthesis, signaling and iron metabolism (alpha globin chain, ferritin heavy chain and transferrin) were also down-regulated (Table 5). In support of the SSH results, there were significant increases in the mRNA expression levels of acd, ftl and gapdh in the liver of P. annectens after 1 day of arousal from 6 months of aestivation as confirmed by qPCR (Fig. 1G-I).Discussion Maintenance phase: up-regulation of ornithine-urea cycle (OUC) capacityAfrican lungfishes are ureogenic and they possess a full compleme.
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