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To shield her eggs and juvenile spiderlings, the predatory spider Pardosa pseudoannulata mother crafts an eggsac. In the P. pseudoannulata genome, An EcR and two USPs were found, as well as two P. pseudoannulata genes. The adult females who died for more invalid eggs than the control counterpart produced more invalid eggs containing non-viable eggs than the control counterpart, and they ate the invalid eggsacs. The emergence and reproduction of P. pseudoannulata were limited by EcR/USP-1-mediated ecdysteroid signaling, according to It. The female spiders spotted the non-viable eggs in eggsac's eggsac and immediately ate the invalid eggsac to end the useless reproduction cycle and start a new cycle by hatching a new eggac. The correct eggs will partially compensate for the population loss as a result of the invalid eggsac care's poor growth, as well as eating the incorrect eggsac.
Source link: https://europepmc.org/article/PPR/PPR509980
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