Biologis memetakan family tree yang dikenal dari kelompok semua ular dan kadal--T-REC-komunitas reptil-semarang--KSE-komunitas satwa eksotik

SILAHKAN MENGGUNAKAN " MESIN TRANSLATE "..GOOGLE TRANSLATE
DISAMPING KANAN INI.............

PLEASE USE ........ "TRANSLATE MACHINE" .. GOOGLE TRANSLATE BESIDE RIGHT THIS

.................


T-REC -TUGUMUDA REPTILES COMMUNITY-INDONESIA


More info :
www.trecsemarang2011.blogspot.com
minat gabung : ( menerima keanggotaan seluruh kota dan daerah di Indonesia )
08995557626
..................................
KSE – KOMUNITAS SATWA EKSOTIK – EXOTIC PETS COMMUNITY-- INDONESIA
Visit Our Community and Joint W/ Us....Welcome All Over The World
www.facebook.com/groups/komunitassatwaeksotik/
 KSE = KOMUNITAS SATWA EKSOTIK

MENGATASI KENDALA MINAT DAN JARAK

KAMI ADA DI TIAP KOTA DI INDONESIA
DETAIL TENTANG KSE-----KLIK : www.komunitassatwaeksotik-pendaftaran.blogspot.com

GABUNG......... ( menerima keanggotaan seluruh kota dan daerah di Indonesia )
HUBUNGI   :  089617123865

.........................

Biologis  memetakan family tree yang dikenal dari kelompok  semua ular dan kadal

Ahli biologi telah menciptakan evolusi pohon keluarga / family tree  skala besar pertama untuk setiap ular dan kadal di seluruh dunia .....read more

Biologist maps the family tree of all
known snake and lizard groups

Date:

May 8, 2013

Source:

George Washington University

Summary:

Biologists have created the first large-scale evolutionary family tree for
every snake and lizard around the globe.

.......................

A George Washington University biologist and a team of researchers have
created the first large-scale evolutionary family tree for every snake and
lizard around the globe.

The findings were recently published in the journal BMC Evolutionary
Biology. Alex Pyron, the Robert F. Griggs Assistant Professor of Biology in
GW's Columbian College of Arts and Sciences, along with researchers from the
City University of New York and Arizona State University, detail the cataloging
of 4,161 species of snakes and lizards, or squamates.

"Squamates include all lizards and snakes found throughout the globe,
including around 9,500 species on every continent except Antarctica, and found
in most oceans," said Dr. Pyron. "This is everything from cobras to
garter snakes to tiny geckos to the Komodo Dragon to the Gila Monster. They
range from tiny threadsnakes that can curl up on a dime to 10 feet monitor
lizards and 30 foot pythons. They eat everything from ants to wildebeest."

The evolutionary family tree, or phylogeny, includes all families and
subfamilies and most genus and species groups, said Dr. Pyron. While there are
gaps on some branches of the tree, the structure of the tree goes a long way
toward fully mapping every genus and species group.

"It's like building an incomplete family tree for your family, but
with half of the 'children' sampled. You're in it, but not your brother, one of
your cousins is, but not another. However, because it's so complete, we know
where the missing relatives go because there's no longer as much mystery as to
how the missing species, or cousins, are related, with a few notable exceptions
for some remaining species.

"This is also a community effort. We sequenced hundreds of these
species ourselves but took thousands more from public databases, building on
the work of others."

Understanding how various snakes and lizards are connected to each other
fills a major gap in knowledge, said Dr. Pyron, because before this, there were
no single reference for how all lizards and snakes were related or what their
classification was.

"A phylogeny and taxonomy is fundamental for all fields of biology
that use lizards and snakes, to understand how to classify the species being
studied, to interpret biological patterns in terms of relatedness, and even at
a more basic level, to count how many species are in an area, for example, for
conservation management purposes."

This project has been in the works since 2008 with the last five years
being the most intense. It was funded by the National Science Foundation
Postdoctoral Research Fellowship in Biological Informatics.

The researchers used DNA sequencing technology to genotype, or identify,
the DNA of thousands of lizards and snakes.

"We have laid down the structure of squamate relationships and yet
this is still the beginning," said Dr. Pyron. "As hundreds of new
species are described every year from around the glove, this estimate of the
squamate tree of life shows us what we do know, and more importantly, what we
don't know, and will hopefully spur even more research on the amazing diversity
of lizards and snakes."







Story Source:

The above story is based on materials provided
by George Washington University. Note:
Materials may be edited for content and length.







Journal Reference:

1.   
Robert Alexander Pyron, Frank T Burbrink, John J Wiens. A phylogeny
and revised classification of Squamata, including 4161 species of lizards and
snakes. BMC Evolutionary Biology, 2013; 13 (1): 93 DOI: 10.1186/1471-2148-13-93

http://www.sciencedaily.com/releases/2013/05/130508172227.htm

Share this: