Skip Navigation

Journal of Biochemistry 2005 138(4):375-382; doi:10.1093/jb/mvi139
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Request Permissions
Google Scholar
Right arrow Articles by Aono, N.
Right arrow Articles by Shiraishi, H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Aono, N.
Right arrow Articles by Shiraishi, H.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 2005 The Japanese Biochemical Society

Regular Paper

Genes Specifically Expressed in Sexually Differentiated Female Spheroids of Volvox carteri

Naoki Aono1,*, Tan Inoue2 and Hideaki Shiraishi2,{dagger}

1 Graduate School of Science and 2 Graduate School of Biostudies, Kyoto University, Kitashirakawa Oiwake-cho, Kyoto 606-8502

{dagger} To whom correspondence should be addressed. Tel: +81-75-753-3998, Fax: +81-75-753-3996, E-mail: siraisi{at}kuchem.kyoto-u.ac.jp

Volvox carteri is a multicellular green alga with only two cell types, somatic cells and reproductive cells. Phylogenetic analysis suggests that this organism has evolved from a Chlamydomonas-like unicellular ancestor along with multicellularity, cellular differentiation, and a change in the mode of sexual reproduction from isogamy to oogamy. To examine the mechanism of sexual differentiation and the evolution of oogamy, we isolated 6 different cDNA sequences specifically expressed in sexually differentiated female spheroids. The genes for the cDNAs were designated SEF1 to SEF6. The time course of accumulation of each mRNA was shown to be distinct. The expression of some of these genes was not significantly affected when the sexual inducer was removed after the induction of sexual development. Sequence analysis indicates that SEF5 and SEF6 encode pherophorin-related proteins. Of these, SEF5 has the unique structural feature of a polyproline stretch in the C-terminal domain in addition to the one found in the central region.

* Present address: National Institute for Basic Biology, Okazaki 444-8585.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Eukaryot CellHome page
K. Ishida
Sexual Pheromone Induces Diffusion of the Pheromone-Homologous Polypeptide in the Extracellular Matrix of Volvox carteri
Eukaryot. Cell, November 1, 2007; 6(11): 2157 - 2162.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
K. Fukada, T. Inoue, and H. Shiraishi
A Posttranslationally Regulated Protease, VheA, Is Involved in the Liberation of Juveniles from Parental Spheroids in Volvox carteri
PLANT CELL, October 1, 2006; 18(10): 2554 - 2566.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.