HOME >> BIOLOGY >> NEWS
Different coat color may not mean different species for lemurs

New Haven, Conn. -- Researchers have found that lemurs suspected to belong to different species because of their strikingly different coat colors, are not only genetically alike, but belong to the same species.

Historically, species classification has been based on comparison of visible physical characteristics of plants or animals. Kellie Heckman, a post-doctoral fellow in ecology and evolutionary biology at Yale, and her colleagues at other universities, used analysis of a mitochondrial gene, cytochrome b, to test the genetic relationship of 70 lemurs that were thought to belong to up to three different species. Their report was published in the open access journal BMC Evolutionary Biology.

"Our study combined morphological, genetic, geographic, and ecological data giving a multidimensional, and hopefully more accurate picture of species diversity," said Heckman. "Over the past decade, the number of proposed species of these lemurs has jumped from two to fifteen, based on physical differences. It pointed to the need for caution when identifying new species solely on the basis of visual or genetic characteristics."

The lemurs they tested had three extremely different coat colors and lived in different types of forest locations in southern Madagascar -- classic characteristics of separate species. These researchers chose to compare mitochondrial cytochrome b as a gene marker that is known to change at a rate similar to that of speciation. Other common nuclear genes may evolve more slowly or more rapidly with population drift.

Surprisingly, the researchers found that although the lemurs appeared to be different species because they were visually distinct, they did not differ genetically. According to the sequence of their cytochrome b genes, all belong to the same previously identified species, Microcebus griseorufus.

The authors also show that lemurs with each of the three
'"/>

Contact: Janet Rettig Emanuel
janet.emanuel@yale.edu
203-432-2157
Yale University
15-Nov-2006


Page: 1 2

Related biology news :

1. Different approach needed to protect brains of premature infants
2. All itches not created equal -- Different parts of brain activated depending on cause
3. Different strategies underlie the ecology of microbial invasions
4. Different genes may cause autism in boys and girls
5. Different but equal: Settling the dosage compensation debate
6. Different microarray systems more alike than previously thought
7. Interaction of just 2 genes governs coloration patterns in mice
8. Phase II study of therapeutic vaccine shows efficacy in patients with metastatic colorectal cancer
9. Brightly colored birds most affected by Chernobyl radiation
10. Study identifies a common genetic risk factor for colorectal and prostate cancer
11. Which came first: Primates ability to see colorful food or see colorful sex?

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
(Date:4/5/2017)... 2017 Today HYPR Corp. , leading ... component of the HYPR platform is officially FIDO® ... security architecture that empowers biometric authentication across Fortune 500 ... secured over 15 million users across the financial services ... home product suites and physical access represent a growing ...
(Date:3/30/2017)...  On April 6-7, 2017, Sequencing.com will host the ... hackathon at Microsoft,s headquarters in Redmond, Washington ... developing health and wellness apps that provide a unique, ... is the first hackathon for personal genomics and ... in the genomics, tech and health industries are sending ...
Breaking Biology News(10 mins):
(Date:4/26/2017)... ... April 26, 2017 , ... NextSteps 2017, NetDimensions’ ... North America this May on the following dates: , ?    London, UK from ... of the Learning and Performance Institute will be the opening keynote speaker ...
(Date:4/25/2017)... California (PRWEB) , ... April 25, 2017 , ... ... Intelligence (AI), leading supplier of Common Lisp (CL) development tools, and market leader ... , which includes key performance enhancements now available within the most effective system ...
(Date:4/25/2017)... , ... April 25, 2017 , ... ... and Metrology Partners.     , Covalent’s Analytical Services unit provides high-quality data ... be measured within 24 hours of receipt. There are no price premiums, and ...
(Date:4/21/2017)... ... 21, 2017 , ... The 2017 Colorado Manufacturing Awards celebrates ... nominees and well as the first-year award for 2017 Manufacturing Women of the ... hosted by CompanyWeek and Manufacturers Edge, among other sponsors. , The Colorado ...
Breaking Biology Technology:
Cached News: