Postdoc molón de genómica de ranas punta de flecha en la Guyana Francesa

Oferta compartida por Nuria

Postdoctoral position in Cayenne – French Guiana (30 months): Dissection of the genetic basis underlying the radiation of warning signals in poison dart frogs

Start date: December 1st, 2022

I am looking to hire a postdoctoral researcher (PDR) to investigate the genetic basis underlying the impressive diversity of vivid color pattern in the Peruvian Ranitomeya poison dart frogs as part of the funded project RANAPOSA. The identification of these genomic regions will enable to test original hypothesis regarding the evolution of mimicry convergence between unrelated species and better understand how warning colorations can diversify so extensively and yet be maintained at very small spatial scale. This study investigates three Müllerian mimetic species, Ranitomeya variabilis, R. imitator and R. fantastica and genetic samples available includes Mendelian crosses, wild individuals from multiple populations with distinct warning colorations, and both genome and transcriptomes are already available.

Supervision: 

The PDR will be based in Cayenne (French Guiana at the Laboratoire Ecologie, Evolution, Interaction des Systèmes Amazonien (LEEISA https://www.leeisa.cnrs.fr/) and will be advised by Mathieu CHOUTEAU from the Centre National de la Recherche Scientifique (CNRS). In addition, the PDR will interact with other members of the Ranitomeya consortium: Kyle Summers (East Carolina University), Adam Stuckert (University of Houston) and Rasmus Nielson (UC Berkeley).

Requirement:
Strong expertise in advanced genomic: Association mapping, genome scans, detection of introgression and genomic rearrangements, the use of capture baits, short- and long-reads sequencing, good knowledge of demographic inferences tools, linux system, statistics with R.
Good understanding of molecular laboratory techniques: optimization of DNA extractions, genomic libraries and sequencing design.
Solid organizational and computational skills: curation of the genetic samples, DNA extractions and associated genomic data, handling of genomic datasets generated using different sequencing technologies.
Interest for ecology and evolution: especially in the processes leading to adaptive radiation, including niche specialization, reproductive isolation and population dynamic.
Scientific independence: Excellent analytical and writing skills, good relational abilities and capacity to innovate, interest in developing its own research.

Broader context: 

French Guiana is an overseas department of France located between Brazil and Surinam. Working in Cayenne provides a privilege access to the living laboratory that is the Amazon but also to an inexhaustible number of outdoor activities. A large international community of ecologists and evolutionary biologists are involved in research projects in French Guiana, and many Research institutes interested by the Amazonian biodiversity are locally present (CNRS, CIRAD, INRAE, IRD, Institut Pasteur, Université de Guyane) providing a stimulating research environment and a unique opportunity to build their academic network. The host institution (LEEISA) is young, dynamics, and working conditions and everyday life are pleasant.

Salary: Wage will follow rules from the Centre National de la Recherche Scientifique (CNRS), and will depend notably on experience. French salaries include social benefits such as health insurance.

Application process: Applicants should apply using the CNRS job portal at the following address:
https://emploi.cnrs.fr/Offres/CDD/UAR3456-MARLEC-005/Default.aspx?lang=EN
before November 9th, 2022

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¿Buscas doctorado? Echa un vistazo a estos temas en evolución de aves (coloración, genómica, filogeografía, etc.)

Oferta compartida por Nuria

Multiple Ph.D. positions are available in the Weir Lab (http://www.utsc.utoronto.ca/~jweir/) in the department of Ecology and Evolutionary Biology (https://eeb.utoronto.ca/education/graduate/) at the Scarborough campus of University of Toronto (https://www.utsc.utoronto.ca/biosci/). Our lab uses genomic, morphological and behavioural data to address how speciation occurs in tropical and temperate regions, with a special focus on birds.

Possible PhD projects available include:

1. Genomic analyses of avian hybrid zones in Amazonian and Canadian birds.
2. Conservation genomics and phylogeography of New Zealand kiwi (using our dataset of 55 kiwi genomes).
3. Comparative phylogeography and population genomics across multiple co-distributed avian species complexes to better understand biogeographic drivers of diversification in boreal and Amazonian regions.
4. Analyses of rates of avian colour and song evolution across latitudinal gradients.

The positions would begin in September 2023 and could involve field work (collecting genetic samples in the Amazon of Peru, Brazil, and Canada), lab work (generating genetic data sets using next generation sequencing methods that sample broadly across the genome), and bioinformatic analyses (mining genomic data).

In addition, students can pursue graduate projects in any of the key research areas of the lab and exceptional students may wish to pursue their own projects.

If interested, please send Jason Weir (jason.weir at utoronto.ca) a statement of interest, a CV and an electronic copy of your transcripts. External sources of funding (e.g. fellowships) are generally required for international students (many Latin American countries as well as the EU offer these).

The Weir Lab has fostered a highly diverse group of personnel and seeks to continue to offer a safe place for members of the First Nations, Black, LGBT, and other minority communities.

Example publications from the Weir Lab (PDF's available at https://www.utsc.utoronto.ca/~jweir):
AMAZONIAN SPECIATION
Barrera-Guzman, A.O., A. Aleixo, F. Maya, S. Dantas, & J. T. Weir. 2022. Gene flow, genomic homogenization and the timeline to speciation in Amazonian manakins. Mol. Ecol. 31:4050-4066.
Barrera-Guzman, A.O., A. Aleixo, M.D. Shawkey, J.T. Weir. 2018. Hybrid speciation leads to novel male secondary sexual ornamentation of an Amazonian bird. PNAS. 115: E218-E225.
BIOGEOGRAPHY:
Bemmels, J.B., O. Haddrath, R.M. Colbourne, H.A. Robertson, J.T. Weir. 2022. Legacy of supervolcanic eruptions on population genetic structure of brown kiwi. Current Biology.32:1-9 

Weir, J. W., O. Haddrath, H. A. Robertson, R. M. Colbourne, A. J. Baker. 2016. Explosive ice age diversification in kiwi. PNAS. 113:E5580-E5587.
CONSERVATION GENETICS:
Bemmels, J.B., E.K. Mikkelsen, O. Haddrath, R.M. Colbourne, H.A. Robertson, J.T. Weir. 2021. Demographic decline and lineage-specific adaptations characterize New Zealand kiwi. Proc. R. Soc. B. 288: 20212362.
TRAIT EVOLUTION:
Anderson, S.A.S. & J.T. Weir. 2021. Character displacement drives trait divergence in a continental fauna. PNAS. 118:e2021209118

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Postdoc con carotenoides en Suecia

WANTED: A highly motivated and self-driven postdoc, with strong evolutionary and molecular genetics background, to join the ECCO (Evolution of Colour Communication) lab at the Dept. of Biological and Environmental Sciences, University of Gothenburg, Sweden. 

ECCO (P.I. Staffan Andersson) explores sexual selection, evolution and
diversification of the spectacular breeding plumages of African
weaverbirds (Ploceidae), in particular carotenoid coloration and
elongated tails in the widowbirds and bishops (Euplectes spp.). In
collaboration with researchers in UK, Norway and South Africa, the
focal areas are at present; 1) Evolutionary genetics and physiology of
carotenoid metabolism and pigmentation, and 2) Phylogenetic and
comparative analyses of coloration and sexual dichromatism in
weaverbirds. Depending on background, talents and interests, the
successful candidate may be involved in either of these interacting
approaches, as applied to a suggested project on Coevolution of color
signals and color vision, as well as to other ongoing or emerging
projects. QUALIFICATIONS: PhD in biology, a genuine interest in the
intersection of behavioral ecology and evolutionary genetics, ability
to conceive and write research papers, extensive PhD or postdoc
experiences of either or both molecular genetic labwork (spec. qRT-PCR)
and computational biology (bioinformatics, statistics, comparative
methods). A background in biochemistry (spec. HPLC and LC-MS) is
valued, so also proficiency in one or more programming or scripting
languages (spec. R, Python), and database management (spec.
PostgreSQL). Other relevant qualifications include reflectance
spectrometry, field ornithology (watching, handling, and sampling
birds), and social and communicative skills. POSITION: The postdoc is
funded by a tax-free 2-year scholarship from the Carl Tryggers
Foundation, amounting to 23,000 SEK per month. Starting date: ASAP, but
not later than 1 October, 2018 APPLICATION: Before the DEADLINE 30
JUNE, 2018, submit an e-mail to staffan.andersson@bioenv.gu.se with
subject heading ‘ECCO PDRA' followed by your last name, and attach
a SINGLE PDF FILE including the following documents: i) A cover letter
describing your research background and interests, suitability for the
position, and which aspects of the ECCO research you are most
interested in, ii) A detailed CV including a publication list and other
achievements, iii) Contact details (letters welcome, but optional) of
two or three reference persons who can be contacted by phone
or e-mail. Prospective candidates will be invited for interviews in
person or by Skype. For more information
contact staffan.andersson@bioenv.gu.se. BioEnv, University of
Gothenburg, Box 463, 40530 Goteborg, Sweden. +46-317863647 (office),
+46-708-641959 (cell)



Staffan Andersson
Professor, Animal Ecology
Dept of Biological and Environmental Sciences, University of Gothenburg
Email: staffan.andersson@bioenv.gu.se
Skype: euplectes
Phones: +46-317863647 (office), +46-708641959 (mobile)
OrderID: 3130BANSTA (on all invoices!)
Invoices: Box 115, 40530 GÖTEBORG
Deliveries: Medicinaregatan 18, 413 90 GÖTEBORG
Snailmail: Box 463, 405 30 GÖTEBORG

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2 ofertas de doctorado en biomimetismo (OH, USA)

The Biomimicry Research and Innovation Center (BRIC) at The University of Akron, Akron Ohio, USA is seeking qualified candidates looking for unique PhD training in Biomimicry. Two five-year fellowships (NASA and The Cleveland Water Alliance) providing a stipend and covering graduate tuition are available. BRIC currently hosts 15 Biomimicry Fellows and we are adding new Biomimicry Faculty as well. Fellowships start September 2016 and will be filled ASAP. Admissions and review are rolling. Please follow one of the links below for more information:

http://www.uakron.edu/ib/academics/biomimicry-fellowship-faq.dot

Peter H. Niewiarowski (phn@uakron.edu)

Current Biomimicry Fellows Blog: http://germinature.com

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Postdoc in mechanisms and/or evolution of animal coloration (USA)

A post-doctoral position in mechanisms and/or evolution of animal coloration is available in the
Shawkey lab at the University of Akron in Ohio, USA.  We are examining how pigments and
organization of tissue at the nanostructural scale in feathers and eggs contributes to their optical
(coloration, iridescence) and non-optical (tensile strength, hydrophobicity, etc.) properties. In turn,
we are examining how these properties may affect their evolution, particularly in regards to sexual
selection and brood parasitism.

Specific projects will depend on the interests of the post-doc, but will likely involve use of electron
and light microscopy, chemical analyses (Raman, mass spec, etc.), spectrophotometry, phylogenetic
and/or optical modeling and potentially some fieldwork with brood parasitic birds. The post-doc will
be expected to write and contribute to manuscripts for publication in peer-reviewed journals and to
grants for additional funding. Minimum qualifications for both positions are a Ph.D. in physical or
life sciences by the time the position starts. The successful candidate will be highly motivated,
interested in interdisciplinary work and able to work independently.  The best metric of these
characteristics is a record of peer-reviewed publication.

For complete details and to apply for this position, visit:  http://www.uakron.edu/jobs/. Job # 8123.
Both positions are available immediately and are grant funded for a period of two years that renew
annually. Salary will be commensurate with experience. For further information on our lab group,
please see http://gozips.uakron.edu/~shawkey. The University of Akron is committed to a policy of
equal employment opportunity and to the principles of affirmative action in accordance with state
and federal laws.

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