Genetic diversity and structure of the narrow endemic Seseli farrenyi (Apiaceae) : implications for translocation
Garcia-Jacas, Núria (Institut Botànic de Barcelona)
Requena, Jèssica (Institut Botànic de Barcelona)
Massó, Sergi (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Vilatersana, Roser (Institut Botànic de Barcelona)
Blanché, Cèsar (Universitat de Barcelona)
López-Pujol, Jordi (Institut Botànic de Barcelona)

Data:	2021
Resum:	Seseli farrenyi (Apiaceae) is an extremely narrow endemic plant, which is considered as one of the species of most conservation concern in Catalonia (NW Mediterranean Basin). Given the accelerated fragmentation and reduction of population size (of over 90%), the environmental agency of Catalonia is currently preparing a recovery plan that includes reinforcements of the extant populations. The present study is aimed at providing the necessary knowledge to carry out genetically-informed translocations, by using microsatellites as genetic markers. Fourteen microsatellites have been specifically developed for S. farrenyi, of which nine have been used. Besides the extant natural populations, the three ex situ collections that are known to exist of this species have also been studied, as they would be the donor sources for translocation activities. Our main finding is that levels of genetic diversity in the natural populations of S. farrenyi are still high (H = 0. 605), most likely as a result of a predominantly outcrossing mating system in combination with the limited time elapsed since the population decline. However, population fragmentation is showing the first genetic signs, as the values of genetic differentiation are relatively high, and two well-differentiated genetic lineages have been found even in such a narrow geographic range. These genetic results provide important information when designing conservation management measures.
Nota:	Altres ajuts: Departament de Territori i Sostenibilitat de la Generalitat de Catalunya / PTOP-2017-827
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Conservation ; Extremely narrow endemic ; Genetic diversity ; Iberian Peninsula ; Seseli farrenyi ; Microsatellites ; Recovery plan ; Threatened ; Reinforcement ; Fragmentation
Publicat a:	PeerJ, Vol. 9 (February 2021) , art. 10521, ISSN 2167-8359

DOI: 10.7717/peerj.10521
PMID: 33604159

24 p, 19.6 MB

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