Effects of Salinity on the Reproductive and Lifespan Traits of <i>Artemia</i> Parthenogenetic Lineages with Different Ploidy Levels.

ABSTRACT: Although previous studies have investigated the reproductive (performance and mode) and lifespan traits of parthenogenetic Artemia, ploidy level has not been considered. Four parthenogenetic Artemia lineages, i.e., diploid, triploid, tetraploid, and pentaploid, were examined to determine the role of ploidy level under osmotic stress conditions (50, 100, and 150 ppt). Although the reproductive mode of the pentaploid lineage is unaffected by changes in salinity, it is entirely switched to oviparity in the diploid lineage at 50 ppt and in the tetraploid lineage at 100 ppt. Moreover, tetraploid reproduction is completely inhibited at 50 ppt. Although oviparity has been proposed as an adaptive strategy enhancing Artemia fitness at high salinities, the exclusive oviparous re

SUBMITTER: Asem A 

PROVIDER: S-EPMC12383873 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature