Three abundant germ line-specific transcripts in Volvox carteri encode photosynthetic proteins

Volvox carteri is a multicellular eukaryotic green alga composed of about 2000 cells of only two differentiated types: somatic and germ line. To understand how embryonic cells are assigned either to somatic or germ line fates, we are investigating the regulation of transcripts that are abundant in only one cell type. Here we report the identity of three transcripts that are coordinately expressed at high levels in germ line cells but not in somatic cells. Surprisingly, all three transcripts encode photosynthetic chloroplast proteins (light-harvesting complex protein. oxygen-evolving enhancer protein 3, and ferredoxin-NADP(+) reductase) that are transcribed from nuclear genes. We discuss why these mRNAs might be required at high levels in germ line cells and present a hypothesis, suggested by our results, on the evolution of cell specialization in the Volvocales.
Publisher
SPRINGER VERLAG
Issue Date
1996-09
Language
ENG
Keywords

MESSENGER-RNA ACCUMULATION; CHLAMYDOMONAS-REINHARDTII; GENE-EXPRESSION; BINDING-PROTEIN; CELLULAR-DIFFERENTIATION; FERREDOXIN-NADP(+) REDUCTASE; NUCLEAR TRANSFORMATION; SELECTABLE MARKER; PHOTOSYSTEM-I; CHLOROPHYLL

Citation

CURRENT GENETICS, v.30, no.4, pp.347 - 355

ISSN
0172-8083
DOI
10.1007/s002940050143
URI
http://hdl.handle.net/10203/74849
Appears in Collection
BS-Journal Papers(저널논문)
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