Navigation Links
Gene studies lead to kissing cousins
Date:4/12/2010

tunnels, watching to see which pheromone blends attracted and repelled which offspring.

Then they inserted tiny electrodes into cells of the moths' antennae and measured how neurons in the antennae responded to the pheromones of the two species. They found that in each male the antennae neurons' response was largely controlled by which of the species' receptor genes it had inherited.

"In the end, the finding that big changes in the moths' responses to pheromones are controlled by such a small genetic change is a first step toward understanding how the thousands of moth species evolved," Gould says.

The puzzle, or evolutionary paradox, has been that within each moth species "natural selection constantly acts against any female that makes a novel pheromone blend that isn't recognized by males of its species," Gould says. "And males that have a mutated receptor gene that recognizes an as-yet-unevolved pheromone will have a hard time finding a mate."

This has led some to assume that a new moth species could evolve only if genetic changes occurred in the male and female at the same instant in evolutionary time which is highly unlikely.

"In the narrow sense, the research is about the evolution of sexual communication and speciation," Gould says. "But in a broader sense, it is about the evolution of what are sometimes called characteristics with irreducible complexity. Irreducible complexity is the idea that some traits are so complicated that there's no way for them to have evolved by natural selection.

"Moths seem to possess an irreducibly complex mating system," he says, "but perhaps the puzzle of how this system evolved has simply been difficult to solve."

Gould and his colleagues hope that, armed with a new understanding of the male sexual communication genes plus knowledge of the female genes from previous studies, they may now be in a position to recreate the evolutionary events involved in moth specia
'/>"/>

Contact: Dee Shore
dee_shore@ncsu.edu
919-513-3117
North Carolina State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. First studies of fossil of new human ancestor take place at the European Synchrotron
2. Census data aid disease simulation studies
3. Studies provide more support for health benefits of coffee
4. Studies on nutrients, gene expression could lead to tailored diets for disease prevention
5. Mineral studies advance antibacterial alternatives
6. New studies reveal downstream processes of ion channel inactivation
7. Engineer studies tensional integrity of biological structures
8. Charles Drew cancer studies with yeast yield excellent results
9. Studies provide insight into key oat chemical
10. Novel studies of decomposition shed new light on our earliest fossil ancestry
11. Animal behavioral studies can mimic human behavior
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... Energy production systems are good examples of complex ... like a networkincluding water for cooling, transport to ... management. Every step in the network chain is ... all mutually dependent. A team of UK-based scientists ... previously explored. The findings have been published in ...
(Date:8/28/2014)... More than 25 million kilometres of new roads will ... will slice into Earth,s last wildernesses, where they bring ... , Now, an ambitious study has created a ... to try to balance the competing demands of development ... an ,environmental-values, layer that estimates that natural importance of ...
(Date:8/28/2014)... alert the world to Global Warming, has called for ... underground. He says that Carbon Capture, combined with limits ... avoid global warming getting out of control over the ... made the call during his presentation to the International ... meeting to discuss Carbon Capture and Storage. , ...
Breaking Biology News(10 mins):Inter-dependent networks stress test 2Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2
... gradual extinction of cold-loving species, and the European land ... from the University of Kassel in Germany and the ... that human-induced temperature increases over a 40-year period in ... the near extinction of the local land leech Xerobdella ...
... have long known that the human body runs like clockwork, ... of light and darkness. Now a team of researchers is ... activity, which could allow them to predict optimal timing for ... solar day and relieve psychosocial stress. In short, ...
... showing that dog-walking in bushland significantly reduces bird ... against the practice in sensitive bushland and conservation ... the ecological impacts of dog-walking have remained subjective ... But the first clear evidence that birds ...
Cached Biology News:Role reversal as humans suck life out of leeches 2Researchers developing device to predict proper light exposure for human health 2Researchers developing device to predict proper light exposure for human health 3A dog in the hand scares birds in the bush 2
(Date:8/29/2014)... August 29, 2014 According to a new ... the global orthobiologics market was valued at USD 3,754.6 million ... USD 5,519.9million in 2019at a CAGR of 5.9% from 2013 ... years and above is afflicted by bone and joint disorders, ... year 2020. This has and will continue to increase the ...
(Date:8/29/2014)... Boston, MA (PRWEB) August 29, 2014 Due ... (FRC) last week, the Adult Stem Cell Technology Center, ... donations to support stem cell therapy research that might benefit ... adult stem cells for new stem cell technologies and therapeutic ... ALS Ice Bucket Challenge donors who wish not ...
(Date:8/28/2014)... 28, 2014 Best Sanitizers, Inc., the ... alcohol-based hand sanitizer, asks food processors and food handling ... hand sanitizer they’re currently using to Best Sanitizers’ ... is critical to fighting cross-contamination and the spread of ... believes there are key criteria that make a hand ...
(Date:8/28/2014)... Grove, PA (PRWEB) August 28, 2014 ... and create a culture that will allow individuals to ... are becoming increasingly important for employers looking to compete ... science industries are embracing this trend, as the sector ... fabric of a company, which will have real results ...
Breaking Biology Technology:Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 2Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 3The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3
... Inc.  (OTCBB: MDXG), an integrated developer, manufacturer and marketer ... human amniotic membrane, announced today its results for the ... The Company recorded record revenue for the ... quarter of 2011 revenue of $1,043,000 and a six-fold ...
... Pa., July 22, 2011 Janssen Biotech, Inc. ... Administration (FDA) issued a Complete Response letter for ... (golimumab).  The application, filed in September 2010, seeks ... inhibiting the progression of structural damage, inducing major ...
... Inc. (Nasdaq: NGSX ), a biopharmaceutical company ... that on July 21, 2011 it entered into a ... to a group of institutional accredited investors and, subject ... $20 million in gross proceeds from the sale of ...
Cached Biology Technology:MiMedx Group Announces Second Quarter 2011 Results 2MiMedx Group Announces Second Quarter 2011 Results 3MiMedx Group Announces Second Quarter 2011 Results 4MiMedx Group Announces Second Quarter 2011 Results 5MiMedx Group Announces Second Quarter 2011 Results 6MiMedx Group Announces Second Quarter 2011 Results 7MiMedx Group Announces Second Quarter 2011 Results 8MiMedx Group Announces Second Quarter 2011 Results 9MiMedx Group Announces Second Quarter 2011 Results 10FDA Issues Complete Response Letter to Janssen Biotech, Inc. for SIMPONI® Supplemental Biologic License Application 2FDA Issues Complete Response Letter to Janssen Biotech, Inc. for SIMPONI® Supplemental Biologic License Application 3FDA Issues Complete Response Letter to Janssen Biotech, Inc. for SIMPONI® Supplemental Biologic License Application 4FDA Issues Complete Response Letter to Janssen Biotech, Inc. for SIMPONI® Supplemental Biologic License Application 5FDA Issues Complete Response Letter to Janssen Biotech, Inc. for SIMPONI® Supplemental Biologic License Application 6NeurogesX, Inc. Announces $20 Million Private Placement 2NeurogesX, Inc. Announces $20 Million Private Placement 3NeurogesX, Inc. Announces $20 Million Private Placement 4
Request Info...
TRIS-EDTA based buffer prepared from RNase-free water suitable for storage and dilution of siRNA, pH 8, store at 4 C ...
Request Info...
...
Biology Products: