Guillardia
| Guillardia | |
|---|---|
| Scientific classification (incertae sedis within Archaeplastida) | |
| Domain: | Eukaryota |
| Phylum: | Cryptophyta |
| Class: | Cryptophyceae |
| Order: | Pyrenomonadales |
| Family: | Geminigeraceae |
| Genus: | Guillardia D. R. A. Hill & R. Wetherbee |
| Species: | G. theta |
| Binomial name | |
| Guillardia theta D. R. A. Hill & R. Wetherbee | |
Guillardia is a genus of flagellate cryptomonad algae belonging to the family Geminigeraceae, containing a secondary plastid within a reduced cytoplasmic compartment that contains a vestigial nucleomorph. There is only one characterised member of this genus, Guillardia theta.
Genomes
Guillardia theta was the first cryptophyte to have its nuclear genome sequenced. The genome contains 87 Mbp, encoding around 24,840 genes.[1] The complete nucleomorph[2] and plastid [3] genomes have been sequenced, containing 551 kbp and 121 kbp respectively.
Optogenetic tools
Two anion-conducting channelrhodopsins were isolated from Guillardia theta that hyperpolarize neuronal membrane potential and are potent inhibitors of neural activity.[4]
References
- ↑ Bruce A. Curtis; Goro Tanifuji; Fabien Burki; Ansgar Gruber; Manuel Irimia; Shinichiro Maruyama; Maria C. Arias; Steven G. Ball; Gillian H. Gile; Yoshihisa Hirakawa; Julia F. Hopkins; Alan Kuo; Stefan A. Rensing; Jeremy Schmutz; Aikaterini Symeonidi; Marek Elias; Robert J. M. Eveleigh; Emily K. Herman; Mary J. Klute; Takuro Nakayama; Miroslav Oborník; Adrian Reyes-Prieto; E. Virginia Armbrust; Stephen J. Aves; Robert G. Beiko; Pedro Coutinho; Joel B. Dacks; Dion G. Durnford; Naomi M. Fast; Beverley R. Green; Cameron J. Grisdale; Franziska Hempel; Bernard Henrissat; Marc P. Höppner; Ken-Ichiro Ishida; Eunsoo Kim; Luděk Kořený; Peter G. Kroth; Yuan Liu; Shehre-Banoo Malik; Uwe G. Maier; Darcy McRose; Thomas Mock; Jonathan A. D. Neilson; Naoko T. Onodera; Anthony M. Poole; Ellen J. Pritham; Thomas A. Richards; Gabrielle Rocap; Scott W. Roy; Chihiro Sarai; Sarah Schaack; Shu Shirato; Claudio H. Slamovits; David F. Spencer; Shigekatsu Suzuki; Alexandra Z. Worden; Stefan Zauner; Kerrie Barry; Callum Bell; Arvind K. Bharti; John A. Crow; Jane Grimwood; Robin Kramer; Erika Lindquist; Susan Lucas; Asaf Salamov; Geoffrey I. McFadden; Christopher E. Lane; Patrick J. Keeling; Michael W. Gray; Igor V. Grigoriev; John M. Archibald (2012). "Algal genomes reveal evolutionary mosaicism and the fate of nucleomorphs". Nature. 492 (7427): 59–65. doi:10.1038/nature11681. PMID 23201678.
- ↑ Susan Douglas; Stefan Zauner; Martin Fraunholz; Margaret Beaton; Susanne Penny; Lang-Tuo Deng; Xiaonan Wu; Michael Reith; Thomas Cavalier-Smith; Uwe-G. Maier (2001). "The highly reduced genome of an enslaved algal nucleus". Nature. 410 (6832): 1091–1096. doi:10.1038/35074092. PMID 11323671.
- ↑ Susan E. Douglas; Susanne L. Penny (1999). "The plastid genome of the cryptophyte alga, Guillardia theta: complete sequence and conserved synteny groups confirm its common ancestry with red algae". Journal of Molecular Evolution. 48 (2): 236–244. doi:10.1007/PL00006462. PMID 9929392.
- ↑ http://science.sciencemag.org/content/349/6248/647
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