Neandertal Y-xromosomu, niyə ayrı növlər olaraq davam etdiyimizə ipucları təqdim edir

77

Cell Peressin dərc etdiyi American Human Genetics Jurnalında (Amerika İnsan Genetikası Jurnalı) məlumat verən tədqiqatçılar neandertalın Y xramasomunun ilk dərin genetik analizini yekunlaşdırmışdılar. Nəticələr müasir insanla neandertallar arasındakı əlaqə üzrə yeni məlumatlar həmçinin bu iki nəsili fərqli edə bilən bəzi genetik amillər irəli sürmüşdür.

Tədqiqatçılar qeyd edir ki, Y xromosomu Neandertal genomundan analiz edilə bilən mövcud əsas komponentdir. “Neandertalın Y xromosomunu xarakterizə etmək bizə Neandertallara və müasir insanlara gətirib çıxaran canlıların  ayrılmalarını daha yaxşı anlamağa kömək edir,” Stanford Universitetindən Fernando Mendez deyir. “Bu, həmçinin hibrid nəsil daxilində qədim və müasir  variantlarının mümkün genetik əlaqələrini araşdırmağa imkan verir.”

Mendez və onun Stanford Universitetindən Karlos Bustamante, Almaniyanın Təkamül Antropologiyası üzrə Max Planck İnstitutundan Sergi Kastellano da daxil olmaqla, həmkarları İspaniyada, El Sidronda tapılmış Neandertal kişinin Y xromosomunu analiz etmişdilər. Onların analizinə görə Neandertallar və müasir insanlar, daha əvvəlki dəlilə də uyğun olaraq, 590.000 il əvvəl ayrılmışlar.

Tədqiqatçılar qeyd edir ki, onların izlədiyi Neandertalın Y xromosomu müasir insanlarda müşahidə olunan hər hansı Y xromosomundan fərqlənir və bu o deməkdir ki, haqqında danışılan nəsil tükənmişdir. Onlar, həmçinin Neandertalın və müasir insanın Y xromosomlarındakı genlər arasında maraqlı zülal – kodlaşdırma fərqləri aşkar ediblər.

Bu dəyişikliklərdən üçü insanlarda kişilərə xas kiçik histouyğunluq (ayrı – ayrı ferdlerin toxumaları arasında uyğunluq) antigenleri istehsal etmək üçün tanınan genlerdə missens mutasiyalarından (nöqte mutasiyası,bunun neticesinde deyişikliye uğramış kodon başqa amin turşusunu kodlaşdırır) ibarətdir. Bu genlərin birindən ayrılmış, KDM5D kimi tanınan antigənlərin bəzi hamilə analarda kişi dölünə qarşı immun reaksiyası yaratdığı və uşaqsalmalara səbəb olduğu düşünülür.

Tədqiqatçılar hesab edir ki, bu genlerin birində və ya bir neçəsindəki uyğunsuzluqlar qədim insanlar və Neandertallar arasında cütləşməni azaldaraq onları ayrı salmaqda rol oynayıb.

“Bizim aşkar etdiyimiz mutasiyaların funksional təbiəti irəli sürür ki, bu Y xromosomu genin axmasına əngəl yaranmasında rol oynaya bilər,” Bustamente bildirib.

“Funksional fərqlərin çoxunun (sperm istehsalına) aid olan genlərdən daha çox, bu genlərlə əlaqədar olması faktı bizim üçün təəccüblü oldu,” Mendez əlavə edib.

Tədqiqatçılar qeyd edir ki, Neandertal və insan növlərinin hibridinin yaranmasına mane olan Y xromosomunun mutasiyalarının rolunu təsdiqləmək üçün əlavə araşdırmaya ehtiyac var. Hal hazırda onlar belə təcrübələri planlaşdırırlar.

 

Mənbə: heritagedaily.com

Leave a Reply

77 Comments on "Neandertal Y-xromosomu, niyə ayrı növlər olaraq davam etdiyimizə ipucları təqdim edir"

Notify of
avatar
Sort by:   newest | oldest | most voted
read review
Guest

I just want to mention I am just new to blogging and definitely savored your blog site. Likely I’m planning to bookmark your website . You amazingly come with very good well written articles. Thanks a bunch for revealing your blog.

`faytech north america
Guest

Faytech North America is a touch screen Manufacturer of both monitors and pcs. They specialize in the design, development, manufacturing and marketing of Capacitive touch screen, Resistive touch screen, Industrial touch screen, IP65 touch screen, touchscreen monitors and integrated touchscreen PCs. Contact them at http://www.faytech.us, 121 Varick Street, New York, NY 10013, +1 646 205 3214

`metroClick
Guest

MetroClick specializes in building completely interactive products like Photo Booth for rental or sale, Touch Screen Kiosks, Large Touch Screen Displays , Monitors, Digital Signages and experiences. With our own hardware production facility and in-house software development teams, we are able to achieve the highest level of customization and versatility for Photo Booths, Touch Screen Kiosks, Touch Screen Monitors and Digital Signage. Visit MetroClick at http://www.metroclick.com/ or , 121 Varick St, New York, NY 10013, +1 646-843-0888

)EMERY EPS
Guest

I really need to reveal to you that I am new to posting and totally liked your information. Most likely I am likely to bookmark your blog post . You undoubtedly have magnificent article materials. Appreciate it for share-out with us your very own site page

Pozycjonowanie Stron WWW Gorzow
Guest

I went over this web site and I believe you have a lot of good info, saved to favorites (:.

Gorzow
Guest

Simply a smiling visitor here to share the love (:, btw outstanding pattern. “Individuals may form communities, but it is institutions alone that can create a nation.” by Benjamin Disraeli.

News
Guest

What i do not understood is in reality how you are not really much more smartly-favored than you may be now. You are very intelligent. You realize therefore significantly in terms of this topic, produced me for my part imagine it from a lot of numerous angles. Its like women and men don’t seem to be interested unless it’s something to do with Girl gaga! Your individual stuffs great. At all times care for it up!

News
Guest

I will right away grab your rss feed as I can not find your email subscription hyperlink or newsletter service. Do you’ve any? Please allow me recognise in order that I may subscribe. Thanks.

Eurotax
Guest

I believe you have observed some very interesting details , thanks for the post.

flight
Guest

I enjoy you because of all of your efforts on this blog. Ellie really loves carrying out investigation and it’s really easy to understand why. My partner and i learn all regarding the compelling mode you provide functional guidance by means of the web blog and in addition increase contribution from other people on the theme plus our own girl is without question becoming educated a lot. Enjoy the remaining portion of the new year. You have been performing a pretty cool job.

flight discount
Guest

Thank you for the good writeup. It in fact was a amusement account it. Look advanced to more added agreeable from you! However, how can we communicate?

kitchen remodel ideas
Guest

I would like to show my respect for your kindness giving support to those people that really need help on this issue. Your very own commitment to getting the message all over has been especially significant and has all the time enabled ladies just like me to attain their endeavors. Your entire important useful information denotes a lot to me and far more to my office workers. Best wishes; from all of us.

John Deere Diagnostic and Test Manuals
Guest

They call it the “self-censor”, simply because you’re too self-conscious of your writing, too judgmental.

News
Guest

I dugg some of you post as I cerebrated they were handy very useful

Traktory i Maszyny Rolnicze
Guest

Thanks for the sensible critique. Me & my neighbor were just preparing to do some research on this. We got a grab a book from our local library but I think I learned more clear from this post. I’m very glad to see such magnificent information being shared freely out there.

News
Guest

I was studying some of your articles on this website and I believe this website is very informative! Retain putting up.

5aswiss.com
Guest

I was just looking for this info for a while. After six hours of continuous Googleing, finally I got it in your website. I wonder what is the lack of Google strategy that don’t rank this type of informative web sites in top of the list. Normally the top web sites are full of garbage.

aoflibrary.net
Guest

You made a few fine points there. I did a search on the topic and found most folks will consent with your blog.

http://blogcabinca.org
Guest

You really make it appear really easy together with your presentation however I in finding this matter to be actually something which I believe I would by no means understand. It seems too complex and very extensive for me. I’m taking a look ahead to your next put up, I will try to get the hold of it!

Fashion
Guest

I’ve recently started a website, the info you provide on this website has helped me greatly. Thanks for all of your time & work. “If you would know strength and patience, welcome the company of trees.” by Hal Borland.

health news
Guest

I think other website proprietors should take this site as an model, very clean and excellent user genial style and design, as well as the content. You are an expert in this topic!

Ile Kosztuje Pozycjonowanie Strony
Guest

fantastic issues altogether, you simply won a new reader. What could you recommend about your post that you made some days ago? Any sure?

Projektowanie Stron
Guest

I like this website so much, saved to my bookmarks. “American soldiers must be turned into lambs and eating them is tolerated.” by Muammar Qaddafi.

Home Improvement
Guest

It’s actually a great and useful piece of information. I am glad that you shared this helpful information with us. Please stay us informed like this. Thank you for sharing.

Gartentore Aus Polen
Guest

You have remarked very interesting details! ps nice site.

designer handbags
Guest

I simply could not leave your website before suggesting that I extremely enjoyed the usual info an individual supply in your visitors? Is gonna be back ceaselessly to investigate cross-check new posts

consultarnumero.com
Guest

Just wish to say your article is as surprising. The clarity in your post is just excellent and i could assume you are an expert on this subject. Well with your permission allow me to grab your RSS feed to keep up to date with forthcoming post. Thanks a million and please continue the gratifying work.

chanelpascher.com
Guest

You could certainly see your expertise within the work you write. The sector hopes for more passionate writers such as you who are not afraid to say how they believe. Always follow your heart.

zgrzewarka do rur pe
Guest

Good day very cool blog!! Man .. Excellent .. Superb .. I will bookmark your blog and take the feeds additionally…I’m glad to find numerous helpful info right here in the submit, we want work out extra strategies in this regard, thanks for sharing.

http://www.columbusgis.com
Guest

Thank you for the good writeup. It in fact was a amusement account it. Look advanced to more added agreeable from you! By the way, how can we communicate?

historicdowntownmocksville.com
Guest

Very nice post. I just stumbled upon your blog and wished to say that I’ve really enjoyed browsing your blog posts. In any case I will be subscribing to your rss feed and I hope you write again very soon!

www.crammonduk.com
Guest

I¡¦ll right away snatch your rss feed as I can not to find your email subscription link or e-newsletter service. Do you have any? Please let me understand so that I could subscribe. Thanks.

http://healthexpo2015.net
Guest

I have been browsing on-line more than 3 hours lately, but I by no means discovered any fascinating article like yours. It¡¦s lovely value sufficient for me. Personally, if all website owners and bloggers made just right content as you probably did, the internet will likely be a lot more helpful than ever before.

News
Guest

A person necessarily help to make seriously articles I might state. This is the first time I frequented your website page and thus far? I surprised with the analysis you made to make this actual put up incredible. Wonderful process!

montaz rur pex
Guest

You have brought up a very good points , thankyou for the post.

artykuly bhp sklep
Guest

I believe this website has some very great info for everyone :D. “America is not merely a nation but a nation of nations.” by Lyndon B. Johnson.

Home Improvement
Guest

Simply wanna comment on few general things, The website layout is perfect, the subject matter is real fantastic : D.

ArcheryRange
Guest

Great write-up, I am regular visitor of one¡¦s web site, maintain up the nice operate, and It’s going to be a regular visitor for a lengthy time.

HealthTest
Guest

Generally I don’t read article on blogs, but I wish to say that this write-up very pressured me to check out and do so! Your writing style has been surprised me. Thank you, quite great article.

Buty Jeansowe Kozaczki
Guest

Some genuinely superb blog posts on this internet site, thank you for contribution. “I finally know what distinguishes man from other beasts financial worries. – Journals” by Jules Renard.

supplier
Guest

Faytech North America is a touch screen Manufacturer of both monitors and pcs. They specialize in the design, development, manufacturing and marketing of Capacitive touch screen, Resistive touch screen, Industrial touch screen, IP65 touch screen, touchscreen monitors and integrated touchscreen PCs. Contact them at http://www.faytech.us, 121 Varick Street, New York, NY 10013, +1 646 205 3214

Health
Guest

We are a group of volunteers and opening a new scheme in our community. Your website offered us with valuable information to work on. You’ve done a formidable job and our whole community will be thankful to you.

Buty z Dzinsu
Guest

Nice read, I just passed this onto a colleague who was doing some research on that. And he actually bought me lunch as I found it for him smile Thus let me rephrase that: Thank you for lunch! “But O the truth, the truth. The many eyes That look on it The diverse things they see.” by George Meredith.

LawJobs
Guest

Heya i’m for the first time here. I found this board and I find It really useful & it helped me out a lot. I hope to give something back and help others like you helped me.

Tenisky Mustang
Guest

I gotta bookmark this website it seems very helpful extremely helpful

Home Improvement
Guest

I gotta bookmark this website it seems extremely helpful invaluable

kenoshanow.com
Guest

I like what you guys are up too. Such clever work and reporting! Carry on the excellent works guys I have incorporated you guys to my blogroll. I think it will improve the value of my site 🙂

ircyb.org
Guest

I’m still learning from you, while I’m trying to reach my goals. I definitely love reading everything that is posted on your blog.Keep the information coming. I liked it!

rent
Guest

MetroClick specializes in building completely interactive products like Photo Booth for rental or sale, Touch Screen Kiosks, Large Touch Screen Displays , Monitors, Digital Signages and experiences. With our own hardware production facility and in-house software development teams, we are able to achieve the highest level of customization and versatility for Photo Booths, Touch Screen Kiosks, Touch Screen Monitors and Digital Signage. Visit MetroClick at http://www.metroclick.com/ or , 121 Varick St, New York, NY 10013, +1 646-843-0888

Compare Cars
Guest

Wow! Thank you! I continually wanted to write on my website something like that. Can I include a fragment of your post to my site?