Though the embryonic expression of some of these molecules had previously been examined, frog metamorphosis allowed us the opportunity to see in particular how MT-MMPs and TIMPs might be regulated together in a developmental process that is controlled by one molecule T3.
We examined size at metamorphosis, time to metamorphosis, and gonadal differentiation in the northern leopard frog (Rana pipiens), a species that is exposed to this mixture in the wild.
If one examines Gottwald's metamorphosis from Lukasz to Kasz to Dr. Luke, the progress is toward increasing control over the process of creating and selling music.
By examining Drosophila tracheal outgrowth during metamorphosis, we show that progenitors follow a stereotyped path out of the niche, tracking along a subset of tracheal branches destined for destruction.
In an effort to better understand the role of these five genes during metamorphosis, we examined if they were directly responsive to thyroid hormone induced metamorphosis.
To test for carryover effects, we controlled for starting density in the postexposure phase (by incorporating survival to metamorphosis as a covariate in the statistical model) when examining postexposure survival.
Previous studies have examined gene expression during metamorphosis, though the studies were limited in the number of genes assayed and in the fact that they did not distinguish between gene expression in somatic and germline tissues [ 7, 8].
Our previous study examining gene expression in wild type flies found a larger percentage of genes (~94% of genes represented on arrays) expressed during metamorphosis (3,784/4,028 genes; [ 7]).
The ability of the coral larvae to metamorphosize was examined using the coral metamorphosis-inducer peptide Hym-248 [31] after 2 h and 7 d exposure to acidified seawater.
By contrast, as in the case of its Galaxea counterpart [ 8], Amgalaxin is expressed in both of the post-metamorphosis stages examined: weakly in primary polyps, but strongly in adult colonies.
To examine the pertinence of calponin to metamorphosis, we examined the expression profiles of calponin and Broad (Br), an initiating factor of metamorphosis.
