HOME >> BIOLOGY >> NEWS
A new tiger subspecies?

"Tyger! Tyger! burning bright / In the forests of the night / What immortal hand or eye / Could frame thy fearful symmetry?" When William Blake wrote these words in the late 1700s, the deforestation and habitat destruction that would decimate wild tiger populations had already begun. In 1900, an estimated 100,000 wild tigers lived throughout much of Asia, from India in the west to Sumatra and Indonesia in the south to Siberia in the east. Today, the ongoing stresses of habitat loss, hunting, and an illegal trade in tiger parts have spared fewer than 7,000 tigers. Of eight traditionally classified subspecies of Panthera tigris, three have gone extinct since the 1940s. In PLoS Biology, evidence is now reported for a new tiger subspecies.

Conservation strategies to combat the grinding attrition of tiger populations are tailored to each subspecies. But several lines of evidence suggest that subspecies designations--based on geographic range and morphological traits such as body size, skull traits, coat color, and striping patterns--may be flawed. To get a clearer picture of the genetic structure of existing tiger populations, Shu-Jin Luo, Jae-Heup Kim, Stephen O'Brien, and colleagues have performed a comprehensive genetic analysis of over 130 tigers.

DNA was extracted from tigers originating in the Russian far east (Siberian, or Amur, tigers), south China, northern Indochina, the Malaya Peninsula, Sumatra, and the Indian subcontinent. Some of the analysis supported traditional classifications--e.g., for the Sumatran and Bengal tigers--but others suggested that the Indochinese subspecies should be divided into two groups, representing a northern Indochinese and a peninsular Malaya population (which the authors designated respectively as P. t. corbetti and P. t. jacksoni, after the tiger conservationist Peter Jackson).

The distinct genetic patterns found in the tiger populations suggest six rather than five living subspec
'"/>


6-Dec-2004


Page: 1 2

Related biology news :

1. Viable tiger populations, tiger trade incompatible
2. Threats to wild tigers growing
3. Lifting Chinese tiger trade ban a death sentence for wild tigers say WWF and TRAFFIC
4. Wild tigers need cat food
5. New tiger report release: Tiger habitat down from just a decade ago
6. Major report on tigers to be released Thursday at National Zoo
7. Alarming decline in Nepals rhinos and tigers in former Maoist stronghold
8. Housecat-sized Siberian tiger cubs get collared
9. Siberian tigers hang tough
10. Legendary Siberian tiger, Olga, killed by poachers
11. Russia- wide tiger count begins

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


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: