The genetic program for germ-soma differentiation in Volvox

Annual Review of Genetics
David L Kirk

Abstract

Volvox carteri possesses only two cell types: mortal somatic cells and potentially immortal asexual reproductive cells called gonidia. Mutational analysis indicates that three categories of genes play central roles in programming this germ-soma division of labor: First the gls genes function during embryogenesis to cause asymmetric divisions that produce large and small cells. Then the lag genes act in the large cells (gonidial initials) to repress functions required for somatic development while the regA locus acts in the small cells (somatic initials) to repress functions required for reproductive development. Transposon tagging and DNA transformation have recently been used to recover and characterize the glsA and regA genes, and the sequences of these genes lead to testable hypotheses about how they play their roles in germ-soma differentiation.

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Citations

Dec 22, 2010·Sexual Plant Reproduction·Armin Hallmann
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May 16, 2019·Journal of the Royal Society, Interface·Yuriy PichuginArne Traulsen

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Methods Mentioned

BETA
environmental stresses

Software Mentioned

Volvox

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