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Podcasts Videos
Podcasts Videos
 * = may be in French

Can you spot some early spring blooms in the Rockeries?
Two new species of ferns discovered in Geneva
 2 new species of ferns
 discovered in Geneva
 by our colleagues
 Gwénolé Blanchet and
 Frédéric Sandoz !
 Lire l'article.
A legal personality for the Rhone?
 Genève Grandeur
 A legal personality for
 the Rhone ?
Taxon article 26 November
 The history of World
 Flora Online and the
 importance of this
 collaborative project.
 Read the article
Plan Biodiversité 2020-2023
 The 2020-2023 Biodi-
 versity Plan approuved
 by the State Council.
 The CJBG greatly
 contributed to the
 objectives' definition

Opening Hours
Address and Access
Scientific Activities*
According to the decisions taken by the authorities and until February 28th: the Botanical garden is open, as well as the Library's loan service, available by appointment during normal opening hours. However, the Greenhouses, the «Carl von Martius» Exhibition, the Botanic Shop and the Restaurant remain closed.

Covid updates
Learn more HERE...
New catalogue available online now.
More info HERE.
The guided tours are can-
celled until further notice.

Thank you for your understanding.
Carl von Martius Exhibition
Carl von Martius: discovering tropical biodiversity
In the CJBG Library
Extended to May 31st 2021
Watch the TEASER
tropical greenhouse
Our greenhouses are closed but you can still discover them vistually!
Inventory of living collections 2021
Inventory of living collections 2021
Now available!
Annual Report 2019
Rapport Annuel 2019
Discover it now !
Scientific strategy 2020 - 2030
Available online now !

Conservatoire et Jardin botaniques de la Ville de Genve

WelcomeScientific ActivitiesLaboratories
Unit of Phylogeny and Molecular Genetics

Unit of Phylogeny and Molecular Genetics

Research types (in French)
Research programmes

Laboratory of Phylogeny and Molecular Genetics
(resp. Dr M. Perret)

The aim of the laboratory is to explore the evolution of biodiversity based on the analysis of molecular data. Research activities are carried out at two different levels: one is interspecific using phylogenetic approaches and the other is intraspecific using the tools of population genetics and phylogeography.

By providing new insights into the evolutionary history of plants and fungi, our results contribute to improve their classification and to better understand the origin of their outstanding diversity.

Principal techniques used in the laboratory

The laboratory has the capacity to receive 6-8 people fulltime. The laboratory is fully equipped with an automatic sequencer (GenomeLab GeXP™ Genetic Analysis System), which is also able to analyze DNA fragments (microsatellites, AFLP, SNP) and several PCR machines, including a real-time PCR instrument (Corbett RotorGene).

Research projects at the CJB conducted in the laboratory

Academic and Professional training

The laboratory hosts students from the University of Geneva, within the framework of Doctoral and Masters thesis (option “Biodiversity and Systematics” and “Molecular Plant Science”).

The laboratory also welcome visiting students from other Swiss and foreign academic institutions (doc and posdoc) and trains laboratory technicians in biology (CFC) linked with the AGEMEL.

Current members

Recent publications

NACIRI Y., C. CHRISTE, S. BÉTRISEY, Y.-G. SONG, M. DENG, G. GARFÍ & G. KOZLOWSKI. 2019. Species delimitation in the East Asian species of the relict tree genus Zelkova (Ulmaceae): a complex history of diversification and admixture among species. Molecular Phylogenetics and Evolution 134:172-185.

GERLACH A. DA C.L., Z. TOPRAK, Y. NACIRI, E. ARAUJO CAVIRÓD, R.M. BORGES DA SILVEIRA, & P. CLERC. 2019. New insights into the Usnea cornuta aggregate (Parmeliaceae, lichenized Ascomycota): Molecular analysis reveals high genetic diversity correlated with chemistry. Molecular Phylogenetics and Evolution 131:125-137.

CANO A., C. D. BACON, F. W. STAUFFER, A. ANTONELLI, M. L. SERRANO-SERRANO, & M. PERRET. 2018. The roles of dispersal and mass extinction in shaping palm diversity across the Caribbean. Journal of Biogeography 45:1432-1443. (DOI: 10.1111/jbi.13225)

DU PASQUIER P.-E., D. JEANMONOD & Y. NACIRI. 2017. Morphological convergence within recently diversified Silene gigantea complex (Caryophyllaceae) in the Balkan Peninsula and SW Turkey, with the description of a new subspecies. Botanical Journal of the Linnean Society 183: 474–493.

CHAUTEMS A. & M. PERRET. 2017. Description and phylogenetic position of a new species of Nematanthus (Gesneriaceae) from Bahia, Brazil. Candollea 72 (2): 353-361.

SERRANO-SERRANO M. L., A. MARCIONETTI, M. PERRET, & N. SALAMIN. 2017. Transcriptomic resources for an endemic Neotropical plant lineage (Gesneriaceae). Applications in Plant Sciences 5(4): 1600135;

NACIRI Y., P.-E. DU PASQUIER, M. LUNDBERG, D. JEANMONOD & B. OXELMAN. 2017. A phylogenetic circumscription of Silene sect. Siphonomorpha (Caryophyllaceae) in the Mediterranean Basin. Taxon 66 (1): 91-108.

SERRANO-SERRANO M. L., J. ROLLAND, J. L. CLARK, N. SALAMIN AND M. PERRET. 2017. Hummingbird pollination and the diversification of angiosperms: an old and successful association in Gesneriaceae. Proceedings of the Royal Society B 284: 2016.2816.

ARAUJO A. O., A. CHAUTEMS, P. CARDOSO-GUSTAVSON, V. C. SOUZA, AND M. PERRET. 2016. Taxonomic Revision and Phylogenetic Position of the Brazilian Endemic Genus Sphaerorrhiza (Sphaerorrhizineae, Gesneriaceae) Including Two New Species. Systematic botany 41: 651-664.

FERREIRA G. F., A. CHAUTEMS, M. J. G. HOPKINS, AND M. PERRET. 2016. Independent evolution of pouched flowers in the Amazon is supported by the discovery of a new species of Lesia (Gesneriaceae) from Serra do Aracá tepui in Brazil. Plant Systematics and Evolution, 302 (8) : 1109–1119

NACIRI Y., LINDER P. (2015). Species identification and delimitation: the dance of the seven veils. Taxon, 64: 3–16.

LEUZINGER M., NACIRI Y., DU PASQUIER P.-E. & JEANMONOD D. (2015). Molecular diversity, phylogeography and genetic relationships of the Silene paradoxa group of section Siphonomorpha (Caryophyllaceae). Plant Systematics and Evolution, 301(1): 265-278.

SERRANO-SERRANO M. L., M. PERRET, M. GUIGNARD, A. CHAUTEMS, D. SILVESTRO AND N. SALAMIN. 2015. Decoupled evolution of floral traits and climatic preferences in a clade of Neotropical Gesneriaceae. BMC Evolutionary Biology 15: 247.

CHRISTE, C., G. KOZLOWSKI, D. FREY, L. FAZAN, S. BETRISEY, S. PIRINTSOS, J. GRATZFELD & NACIRI Y. (2014). Do living ex situ collections capture the genetic variation of wild populations?: a molecular analysis of two relict tree species: Zelkova abelica and Zelkova carpinifolia. Biodiversity & Conservation, 23: 2945-2959.

CHRISTE C., KOZLOWSKI G., FREY D., BÉTRISEY S., MAHARRAMOVA E., GARFÌ G., PIRINTSOS S. & NACIRI Y. (2014). Footprints of past intensive diversification and structuring for the genus Zelkova (Ulmaceae) in south-western Eurasia. Journal of Biogeography, 41: 1081-1093.

CHRISTE C., CAETANO S., AESCHIMANN D., KROPF M., DIADEMA K., NACIRI Y. (2014). The intraspecific genetic variability of siliceous and calcareous Gentiana species is shaped by contrasting demographic and re-colonization processes. Molecular Phylogenetics and Evolution 70: 323-336.

GAUTIER L., NACIRI Y., ANDERBERG A.A., SMEDMARK J.E.E., RANDRIANAIVO R. & SWENSON U. (2013). A new species, a new genus and a new tribe of Sapotaceae, endemic to Madagascar. Taxon 62: 972-983.

PERRET M., A. CHAUTEMS, ARAUJO A. O., AND N. SALAMIN. 2013. Temporal and spatial origin of Gesneriaceae in the New World inferred from plastid DNA sequences. Botanical Journal of the Linnean Society 171: 61-79.