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Picture: Figure 4G to 4R. |
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Expr8279
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FOZI-1 expression in the M lineage was first detectable in the nuclei of M.d and M.v at the 2-M stage (in 43% of the animals stained, n=21). This expression persisted through the next three rounds of cell divisions, such that all animals (n>50) at the 4-M through to the 16-M stage showed FOZI-1 expression in the M lineage. At the 16-M stage, two cells on the ventral side (M.vlpa and M.vrpa) divide one more time to produce two SMs and two BWM precursors and reach the 18-M stage. At the 18-M stage, FOZI-1 was still detectable in the undifferentiated BWMs and CCs, but not in the SMs (n=22). This expression of FOZI-1 at the 18-M stage appeared transiently and quickly became undetectable in the differentiated BWMs and CCs. FOZI-1 expression was not detected in the SM lineage. |
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CeTwist means hlh-8 here. See Expr607 for the pattern of the same locus. This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope). |
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Expr606
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Immuno fluorescence staining with antisera to ceTwist indicated similar expression pattern to reporter fusion. CeTwist first detected in L1 in defecation-associated muscles and in small number of neuron-like cells in the head. In later larvae, CeTwist was detected in SMs and their descendants. Expression in M and its descendants prior to to the SM stage was detected with reporter fusion but not with antibody. Expression in mature coelomocytes was also only detected with reporter fusions. |
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This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope). |
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Expr607
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3-fold embryo staining first detected in M blast cell after it had finished its posterior migration. hlh-8::gfp detected after hatching in a set of rectum-associated cells that appeared to be defecation-associated muscles (this required full-length hlh-8 genomic fragment). During larval development hlh-8::gfp detected in M cell and all undifferentiated descendants of M. This expression was lost as cells differentiated into body wall or sex muscles. Expression was maintained in the two M derived coelomocytes throughout adult life. L2 expression was seen in all four non-M-derived embryonic coelomocytes. Expression was detected in embryonic coelomocytes after the birth of both postembryonic M-derived coelomocytes. Expression also observed in head cells, likely to be neuronal. hlh-8::lacZ fusion with addition 5' sequences showed reporter activity in coelomocytes. Expression in all these cells were nuclear localized both with gfp and lacZ. |
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Expr3651
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The GFP::MLS-2 fusion construct and antibody staining showed identical expression patterns. Expression of MLS-2 was first detectable in one or two cells in embryos at the 50-cell stage and is localized in the nucleus. MLS-2 continued to be expressed in proliferating cells that are primarily located at the anterior of the embryo and are presumably derived from the AB lineage. During morphogenesis, this expression became restricted to a small subset of head neuronal precursors. Expression persisted in six head neurons during postembryonic development. GFP::MLS-2 expression was also observed in unidentified cells near the vulva at the L2 and L3 stages. To characterize the M lineage expression pattern of mls-2, double-labeling experiments were performed using anti-MLS-2 antibodies and the M lineage-specific hlh-8::gfp or hlh-8::lacZ markers. mls-2 expression in the M lineage was first detectable in the M mesoblast, and was retained during the first three rounds of cell divisions, such that mls-2 expression was still detectable in eight M descendants (designated 8-M stage, n>200). However, after one more round of cell division (at the 16-M stage), no MLS-2 signal was detected either by anti-MLS-2 antibodies or by the gfp::mls-2 fusion construct. Although it is possible that a low level of MLS-2 protein is present after the 8-M stage, the loss of MLS-2 signal at the 16-M stage appears to be due to the instability of the MLS-2 protein, because the mls-2 promoter is still active in M lineage descendants after the fourth round of cell division, as detected by a transcriptional mls-2p::gfp::mls-2 3' UTR construct. Neither the mls-2 promoter activity nor the MLS-2 protein was detected in the SM lineage or the differentiated BWMs and CCs. Thus mls-2 is expressed in the proliferating cells of the early M lineage. |
Localized in the nucleus. |
