Evidence for equal size cell divisions during gametogenesis in a marine green alga Monostroma angicava.

ABSTRACT: In cell divisions, relative size of daughter cells should play fundamental roles in gametogenesis and embryogenesis. Differences in gamete size between the two mating types underlie sexual selection. Size of daughter cells is a key factor to regulate cell divisions during cleavage. In cleavage, the form of cell divisions (equal/unequal in size) determines the developmental fate of each blastomere. However, strict validation of the form of cell divisions is rarely demonstrated. We cannot distinguish between equal and unequal cell divisions by analysing only the mean size of daughter cells, because their means can be the same. In contrast, the dispersion of daughter cell size depends on the forms of cell divisions. Based on this, we show that gametogenesis in the marine green alga, Monostrom

SUBMITTER: Togashi T 

PROVIDER: S-EPMC4558599 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature