Chickens and turkeys 'closer to dinosaur ancestors' than other birds

turkey
Credit: Yathin S Krishnappa

New research from the University of Kent suggests that chickens and turkeys have experienced fewer gross genomic changes than other birds as they evolved from their dinosaur ancestor.

Professor Darren Griffin and a team at the University's School of Biosciences have conducted research that suggests that chromosomes of the chicken and turkey lineage have undergone the fewest number of changes compared to their ancient avian , thought to be a .

The Kent research is part of a study by a consortium of leading scientists into avian or bird genomes, which tell a story of species evolution. The living descendants of were thought to have undergone a rapid burst of evolution after most were wiped out. The detailed family tree of modern birds has however confused biologists for centuries and the molecular details of how birds arrived at the spectacular biodiversity of more than 10,000 species is barely known.

Professor Griffin explained: 'Bird genomes are distinctive in that they have more tiny microchromosomes than any other vertebrate group. These small packages of gene-rich material are thought to have been present in their dinosaur ancestors.

'We found that the chicken has the most similar overall chromosome pattern to its avian dinosaur ancestor.'

The research, which formed part of a vast study carried out over the past four years by the international Avian Phylogenomics Consortium, involved the analysis of the whole structure of the chicken, turkey, Pekin duck, zebra finch and budgerigar.

Professor Griffin and the other leaders of the research team—Kent colleague Dr Michael Romanov as well as Dr Denis Larkin and Dr Marta Farré from the Royal Veterinary College, University of London - studied data from a total of 21 avian genomes and one reptile species. The team focused on the six best-assembled genomes to put together a karyotype - organised profile - of the dinosaur ancestor for each chromosome.

The researchers also found that the fastest rate of change had occurred in the and budgerigar, consistent with more rapid speciation events in songbirds and their relatives.


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Dinosaur family tree gives fresh insight into rapid rise of birds

More information: The research paper, entitled Reconstruction of gross avian genome structure, organization and evolution suggests that the chicken lineage most closely resembles the dinosaur avian ancestor, is published in the open access journal BMC Genomics on 11 December 2014. See: www.biomedcentral.com/1471-2164/15/1060
Journal information: BMC Genomics

Provided by University of Kent
Citation: Chickens and turkeys 'closer to dinosaur ancestors' than other birds (2014, December 11) retrieved 21 August 2019 from https://phys.org/news/2014-12-chickens-turkeys-closer-dinosaur-ancestors.html
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Dec 11, 2014
With the added benefit of being tasty.

yep
Dec 11, 2014
Great TED talk on making "Chickenosaurus" if you have not seen it.
http://www.ted.co..._chicken

Dec 11, 2014
With the added benefit of being tasty.


One can't help but wonder how a t-rex, roasted and with crispy skin, would have tasted!

Dec 11, 2014
This comment has been removed by a moderator.

Dec 12, 2014
This comment has been removed by a moderator.

Dec 12, 2014
Why the PO trolls downvote the posts, which formed the headlines here just before few months (http://phys.org/n...ds.html) goes over my head.. You must love to look stupid...


The problem is your insistence on promoting pseudoscience, it drags down your credibility on any subject.

yep
Dec 12, 2014
Why the PO trolls downvote the posts, which formed the headlines here just before few months (http://phys.org/n...ds.html) goes over my head.. You must love to look stupid...

I could ask you and Magnus the same thing as the talk I posted above is all about suppressing gene expression to revert chickens to a more raptor like state which is pertinent to this article, Shootists comment, and a fun video to boot, yet I get shite for votes. Most of the time I can understand the low votes I get because I do not generally except mainstream astrophysical conjecture because of its a priori conception and physical reality defying magic, which most scientists religiously believe. In this situation it is apparent some of you are just dicks and down vote wherever I comment like a grudge because I won't believe your fairy tales. Its very insubordinate and churlish.

Dec 12, 2014
@yep posted
Great TED talk on making "Chickenosaurus" if you have not seen it.
ok that really was a great video!
I could ask you and Magnus the same thing
zephir is usually so adamant about posting pseudoscience and falsified science like aw.daw, or in things completely unproven (like dark matter caused AGW) that people automatically downvote the post

I gave your video a 5, because it is relevant and was actually a great video,

BUT!

you can't blame others for your own position which is normally against mainstream science!

CAN people read and vote based upon content?
yes

BUT it is so much easier and saves a LOT of time to just vote on past history, which is what happened

just like zephir's post
it is not a grudge, just a time saving technique because you and zephir tend to say things like
most scientists religiously believe...

yep
Dec 14, 2014
I am against main street science when that orthodoxy is used to support corporate agendas, as evident in an overwhelming portion of last century as well as this one. Reading science history it is apparent many previously accepted beliefs have become obsolete with new data. Many claims in the hindsight of 20/20 are spurious in their nature and the large organizations formed to promote them often have a revolving door to Government. This is not to say there is a cabal in the science community that pulls the strings of reason, but there is a certain amount of indoctrination into the higher orders of learning and that is why I often goad with science=religion.
The last statement in my post above is a reference to a comedy sketch, I hope you will enjoy it as it pertains to my point on preconception.
https://www.youtu...FixvoKBw

Dec 14, 2014
This comment has been removed by a moderator.

Dec 14, 2014
I am against main street science when that orthodoxy is used to support corporate agendas, as evident in an overwhelming portion of last century as well as this one
@yep
so you are choosing a platform of conspiracy to push a pseudoscience instead? (with regard to your astrophysics posts and eu support)
Reading science history it is apparent many previously accepted beliefs have become obsolete with new data
and your decision is to support one that has already been proven wrong and falsified?
HOW is this logical?

I don't understand... i've seen you support eu claims... and eu is pseudoscience with a touch of plasma eng physc to make it draw the ignorant and too lazy to research the reality and find the truth!

this is how a con man works!
with claims about "it hasen't been accepted yet"
and "historically, blah blah blah proven wrong"

LEARN the truth for free
http://ocw.mit.ed...ophysics
FREE

Dec 14, 2014
This is not to say there is a cabal in the science community that pulls the strings of reason, but there is a certain amount of indoctrination into the higher orders of learning and that is why I often goad with science=religion
@yep
and again, you can SEE logic and reason, but then immediately fall back into the dark rabbit hole of conspiracy... of course, ZEPHIR can give you all kinds of so called "evidence' of this, because he hates mainstream science too...

this stance is NO DIFFERENT than zephir's
and supporting known pseudoscience in eu is no different than zephir either
All you did was pick something that looked like it was lead by smart folk, and you want to be part of something

i say dump all the PSEUDOSCIENCE and go to the REAL SOURCE
http://ocw.mit.ed...ophysics

learn it for FREE in your own time
THEN go back and really LOOK at those other pseudosciences and you will understand

really, you will

yep
Dec 14, 2014
Ok Captain, keep your head in the sand. Science is never misused by politics and corporations have the utmost regard for the individual and humanity, they also would never manipulate or use science to promote anything to our detriment.

The con is you believe in a standard theory based in the gaslight era and since you are unwilling to consider data without a priori you are caught in narrow view of a big bang fantasy.

I still have that black hole detector to sell, 50 grand and I'll have it in the mail tomorrow. I have a few available and I can make more for the true believers!


Dec 14, 2014
keep your head in the sand
@Yep
since when is requiring legitimate science/proof "keeping my head in the sand"?
...never misused by politics...never manipulate ..
you seem to have missed my point, which is simple:
we have far too many scientifically illiterate people who fall for con's from people like the eu clan

BUT there are ways to combat this
EDUCATION

now, i am not being a jerk, but i honestly think you should take advantage of this FREE education and learn WHY the eu is pseudoscience!
GO HERE: http://ocw.mit.ed...=physics
if you go astrophysics, you will learn PLASMA physics too

you will understand(unless you ignore the real physics and decide to cling to the eu CON!)

no joke, yep
just like the biology above
we know a LOT more than the eu says we do
just look and learn

I am appealing to your interest in REAL SCIENCE
the link is FREE
USE IT

you will never regret it

Dec 14, 2014
I still have that black hole detector to sell, 50 grand and I'll have it in the mail tomorrow. I have a few available and I can make more for the true believers!
@yep
again... see above

use the free education and learn WHY
if you can't follow the course, make sure you use their resources like : http://openstudy.com/study
They tell their on-line and registered students to go here to help with the course work... you can set yourself up as well... i did after starting classes and learned more than you can imagine, although i mostly read and don't post

and forget about the EU long enough to specifically learn the basics, then move onto the more advanced studies... they are FREE!
USE THEM

you will find that, as you become more educated & knowledgeable, that there is a LOT of pseudoscience out there... and you TOO can help point it out

just try it
let your mind learn the real basics before accepting the eu basics

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