Navigation Links
Yeast's lifestyle couples mating with meiosis
Date:1/5/2014

lusitaniae, which unlike many Candida species happens to prefer a haploid "lifestyle." The scientists compared how its gene expression regulates mating and meiosis the process of producing haploid cells from diploid cells to that of a related diploid yeast, Saccharomyces cerevisiae, a.k.a. brewer's yeast.

Previous studies had shown that the brewer's yeast regulates meiosis and mating independently. The genes relevant to each process are transcribed and expressed when their specific process is underway. What the researchers discovered in C. lusitaniae, however, is that the yeast expressed genes associated with meiosis and mating during both processes. Their mating and meiosis programs were essentially fused.

"What was surprising was that when we started doing the transcriptional profiling experiments to see how genes are expressed, we weren't seeing this delineation of two programs," Bennett said. "We were seeing genes that that should have been expressed in mating only were also being expressed in meiosis and genes that should have been expressed in meiosis only were expressed in mating. In none of the other closely related species that have been characterized has something like that been seen."

The researchers showed this not only by tracking gene expression but also by knocking out genes in C. lusitaniae that in brewer's yeast are associated with just meiosis (such as IME2) or just mating (such as STE12). Knocking out either gene scuttled both processes in C. lusitaniae. Restoring the knocked out genes restored the processes.

Reproduction rewired

It appeared as if sometime during its own evolution, C. lusitaniae had completely rewired its reproductive program compared to its "cousin" brewer's yeast. If that were without precedent, perhaps it could just be written off as an oddity, but there is another haploid yeast that has also evolved such a fused program: Schizosaccharo
'/>"/>

Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. More efficient production of biofuels from waste with the help of modified yeasts
2. Unique adaptations to a symbiotic lifestyle reveal novel targets for aphid insecticides
3. Childrens physical activity levels are not enough to counteract sedentary lifestyles
4. Lifestyle of a killer
5. Researchers develop guidebook for promoting healthy lifestyles among Hispanic populations
6. Gene mutations caused by a fathers lifestyle can be inherited by multiple generations
7. Moderate exercising encourages a healthier lifestyle
8. Lifestyle, age linked to diabetes-related protein
9. For gay couples, condom decision-making and condom use varies by race
10. Low-cost in-vitro fertilization method developed at CU may help couples in developing countries
11. New method for estimating parameters may boost biological models
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Yeast's lifestyle couples mating with meiosis
(Date:9/30/2014)... environmental scientists and engineers, led by Clemson University ... $5.25 million grant from the U.S. Department of ... make a direct positive impact on South Carolina ... of radioactive contaminants. , "Understanding the scientific and ... environmental aspects of nuclear technologies is imperative if ...
(Date:9/30/2014)... farm runoff in Hawaii is causing tumors in endangered ... study, published Tuesday in the peer-reviewed open-access journal ... up in algae that the turtles eat, promoting the ... internal organs. , Scientists at Duke University, the University ... (NOAA) conducted the study to better understand the causes ...
(Date:9/30/2014)... is available in German . ... behavioural response to risky situations such as exposure to ... now found in a long-term study on different populations ... metabolic rate and ambient temperature. High metabolic rates and ... in these scenarios birds were more likely to approach ...
Breaking Biology News(10 mins):Researchers get $5.25 million to advance nuclear technologies in South Carolina 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3Risky metabolism 2
... PA, September 17, 2007 Women and men appear ... Major depressive disorder (MDD) is one of the most ... the most studied. It is already known that ... changes, associated with MDD and most of todays most ...
... (ACS) News Service Weekly press package (PressPac) with reports ... Engineering News. With more than 160,000 members, ACS is ... journal, or the American Chemical Society, as the source ... ARTICLE #1 FOR IMMEDIATE RELEASE New ...
... Nature Genetics on Sunday 16 September 2007 show that common, ... variation in regions that control activity of genes, rather than ... surprising result comes from a study at the Wellcome Trust ... 270 DNA samples collected for the HapMap Project. The authors ...
Cached Biology News:Women more depressed and men more impulsive with reduced serotonin functioning 2American Chemical Society's Weekly PressPac -- Sept. 12, 2007 2American Chemical Society's Weekly PressPac -- Sept. 12, 2007 3American Chemical Society's Weekly PressPac -- Sept. 12, 2007 4American Chemical Society's Weekly PressPac -- Sept. 12, 2007 5American Chemical Society's Weekly PressPac -- Sept. 12, 2007 6American Chemical Society's Weekly PressPac -- Sept. 12, 2007 7American Chemical Society's Weekly PressPac -- Sept. 12, 2007 8The importance of gene regulation for common human disease 2
(Date:10/1/2014)... 2014  Spherix Incorporated (Nasdaq: SPEX) -- an intellectual property ... of intellectual property, announced today that the Markman ... in the U.S. District Court for the Northern ... been rescheduled for November 10, 2014.  This hearing ... Court Order setting the Markman date was received ...
(Date:10/1/2014)... Jolla, Calif. (PRWEB) September 30, 2014 ... announced the initial round of grants for the ... an undertaking that aims to develop and revolutionize ... circuit functions of the human brain. This first ... for fiscal year 2014 was allocated to more ...
(Date:10/1/2014)... Centreville, VA (PRWEB) October 01, 2014 ... the Diagnostic, Clinical Therapeutics, Healthcare IT, and Laboratory Testing ... and regulatory positions at the director level and above ... payers struggling to stay on top of rapid breakthroughs ... a result, many diagnostic companies have been forced to ...
(Date:10/1/2014)... Industry leaders from retail pharmacies to ... theme, ,Commercial Opportunities in the Era of Reform, from ... Elsevier , a world-leading provider of scientific, technical and ... of some of the industry,s most prominent healthcare leaders ... in the future. The Elsevier Healthcare and ...
Breaking Biology Technology:Markman Hearing Date for VTech and Uniden Litigation Now Set for November 10, 2014 2NIH Awards 15 Grants to CHI Members for BRAIN Initiative Research 2NIH Awards 15 Grants to CHI Members for BRAIN Initiative Research 3Slone Partners Meets Growing Demand as Industry Focuses on Reimbursement & Regulation 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 2Elsevier Healthcare and Pharmaceutical Economics Conference 2014 To Convene Industry Leaders to Discuss Top Healthcare Business Issues 3
... TRBN ) announced today that its collaboration ... WYE ), has initiated a Phase 1 clinical ... for the treatment of systemic lupus erythematosus (SLE). Based ... also being evaluated in a Phase 1 clinical trial ...
... an economic environment where many healthcare providers are ... patients are thriving with help from InstaMed. ... and platform, Prime Health Network has increased patient ... while also improving the patient experience at each ...
... Cynvec LLC, a privately held biotechnology company focused on ... of the sindbis viral vector, today announced that Frank ... the BIO National Venture Conference in Boston on Wednesday, ... About Cynvec LLC , Cynvec, a privately held ...
Cached Biology Technology:Trubion Pharmaceuticals, Inc. Announces Initiation of Phase 1 Study of SBI-087 for the Treatment of Systemic Lupus Erythematosus (SLE) 2Trubion Pharmaceuticals, Inc. Announces Initiation of Phase 1 Study of SBI-087 for the Treatment of Systemic Lupus Erythematosus (SLE) 3Prime Health Network and Its Patients Thrive in Tough Economic Times on the InstaMed Network 2Prime Health Network and Its Patients Thrive in Tough Economic Times on the InstaMed Network 3
... of Class II Biological Safety Cabinets ... to the world's highest safety standards. ... cabinets cannot be adjusted out of ... noise and arm rest ensure safety ...
... The Holten MaxiSafe 2010 Class II ... ergonomical working condition of comfort while ... efficiency and performance.,Refined operator, environment and ... both exhausted and recirculated air.,Bottom filters ...
... is designed for paramagnetic bead precipitation from ... PCR plates with no additional accessories. The ... a standard SBS 96-well microplate footprint. The ... guarantees easy and fast (as little as ...
... Minidizer is a personal desktop unit ideal for ... requirements. , Rotation speed set at 12 ... 80o C , Bottle capacity of four ... 15 ml conical ,plastic bottles , Consistent, ...
Biology Products: