Meeting “Denny” (again)

These have been exciting couple of months.

In early September we’ve reported in Nature, in a article led by  our colleagues at the Genetics Department in the MPI-EVA (V. Slon, S. Pääbo etc) that Denisova 11 (“Denny”), the tiny little bone we had found during a pilot study and reported as Neanderthal  in 2016 in Scientific Reports here, belonged in fact to a girl whose mother was a Neanderthal BUT her father a Denisovan. This is the first unequivocal human we have in the record whose both parents belonged to two separate and now-extinct archaic human groups. How cool is that?

The story made the cover of Nature’s September issue with the ingenious design of A. Günzel (below).

There are several implications stemming from this work, not least the frequency of interbreeding between these human groups at the periphery (?) of their geographic ranges. The DNA analyses give us some interesting leads about population movement and the timing of it, since the Neanderthal mother of Denny shares more in common with a Neanderthal from Vindija cave in Croatia than a Neanderthal found at Denisova cave, all three fossils now sequenced to high coverage.

We have some ideas how to follow these leads with further work and if you’re interested in PhD research do get in touch.

 

Nature cover Issue 7721 (September 2018) by Annette Günzel

IN-ZooMS workshop in Copenhagen

On Sunday 19th August 2018, FINDER project, along with colleagues from the University of Copenhagen, Prof. Matthew Collins and Dr Frido Welker, organised  a round table workshop on the current status, challenges and future prospects of peptide mass fingerprinting of archaeological collagen, the method also know as ZooArchaeology by Mass Spectrometry (ZooMS).

The development and application of ZooMS has led to numerous  research projects and international collaborations over the past decade. These have broad chronological range and geographical spread and a wide scope, from the identification of early human fossils (FINDER’s main scope) to research on animals domestication or the use of specific animals and their byproducts in prehistoric and historic times. The use of ZooMS offers obvious advantages to the traditional zooarchaeological or more sophisticated genetic approaches. It is a fast, cheap and therefore a widely applicable methodology that requires minimum setup for sample preparation.

Contrasted with its potential, the technique has so far been only applied in a handful of laboratories in northern Europe and the USA, and little effort has been made to systematize the preparative protocols and the way results are communicated, managed and archived.

With this 1st meeting we brought together experts who intend to develop and/or apply ZooMS, at a current or new facility. Our aim was to integrate past experience with present knowledge and with the increasing number of studies using the method in archaeology, cultural heritage, ecology and conservation.

We discussed and agreed upon the creation of an International Network for ZooMS (IN-ZooMS), designed to encourage knowledge transfer between facilities and countries, foster open-access principles and create a platform for discussing best practices, eventually allowing synergies, across-lab collaborations and joint funding opportunities.  One of the main requests was the need for open-access, peptide fingerprint reference databases with a wide coverage of traditional as well as less researched regions.

The powerpoint slides, as well as and the programme of the ensuing conference Ancient Proteins @20, can be found on the link below:

https://sites.google.com/palaeome.org/2018-ancient-proteins/programme/sunday-19th-arrival/in-zooms

More information on IN-ZooMS will follow soon, but for now, some pictures from the day.

 

 

FINDER volunteers

FINDER has recently hosted 3 fanstatic volunteers who helped  us sample and prepare bone fragments for ZooMS analysis.

We were delighted to host for 2 weeks, in May, Saltanat Amirova, a student from the Institute of Archaeology of UCL who worked on material from Denisova Cave (Siberian Altai, Russia). Saltanat is from Kazakhstan so her knowledge of Russian was much appreciated in deciphering the individual bone labels written on tiny surfaces many years ago.

Saltanat Amirova, an Archaeology student at the Institute of Archaeology, UCL.

Laura Doody, an undergraduate (senior) studying neuroscience and classics, came all the way from Union College in the State of New York (USA) and spent 6 weeks between June and July at the Max Planck Institute for the Science of Human History in Jena, working alongside Samantha Brown. Laura has been helping us sample and analyse new samples from Denisova Cave.

Laura Doody preparing samples for ZooMS at the Max Planck facility in Jena.

Finally, Geoff Church,  an archaeology student from Birkbeck, UCL, came to Oxford to help us sample, among others, material from Strashnaya Cave in the Siberian Altai. Geoff worked tirelessly for a week in late June and managed to sample nearly 500 bones! Strashnaya Cave has been most recently excavated by Andrei Krivoshapkin and colleagues and has yielded already some human fossils. More would be very welcome!

Geoff Church, an Archaeology student at Birkbeck, UCL, drilling bones for ZooMS analyses at the Research Lab for Archaeology.

We are really very grateful to our volunteers for helping us with the laborious preparation of thousands of samples. We hope that amongst the bones they have been working there will be a hominin bone!

Watch this space for news, and if anyone is interested in becoming involved in either FINDER or PalaeoChron ERC projects, please get in touch.