Endangered species with small and isolated populations has been a key topic of conservation biology studies in the last decade. Lamyropsis microcephala is among the most significant narrow endemic plants in the Mediterranean region, lying on the Gennargentu massif of the Sardinia island (Italy). Due to heavy threat factors, this species has rapidly become threatened with extinction. The inter-simple sequence repeat technique was used to assess the genetic variation and structure of the individuals growing in the four remnant localities known to date, with the aim to implement further conservation strategies. Results indicated a degree of differentiation among the four subpopulations, in particular for the Fonni one. The estimates of Nei's genetic diversity (H) ranged from 0.0563 (Fonni) and 0.1104 (Bau 'e Laccos). Analysis of molecular variance values showed that 53% of the total variation may be attributed to the individuals within subpopulations, while 47% is due to differences among subpopulations (P < 0.001). Results also highlighted a scarce gene flow (Nm = 0.503). © 2013 Societá Botanica Italiana.

Bacchetta, G., Fenu, G., Gentili, R., Mattana, E., Sgorbati, S. (2013). Preliminary assessment of the genetic diversity in Lamyropsis microcephala (Asteraceae). PLANT BIOSYSTEMS, 147, 500-507 [10.1080/11263504.2012.717548].

Preliminary assessment of the genetic diversity in Lamyropsis microcephala (Asteraceae)

GENTILI, RODOLFO FILIPPO;
2013

Abstract

Endangered species with small and isolated populations has been a key topic of conservation biology studies in the last decade. Lamyropsis microcephala is among the most significant narrow endemic plants in the Mediterranean region, lying on the Gennargentu massif of the Sardinia island (Italy). Due to heavy threat factors, this species has rapidly become threatened with extinction. The inter-simple sequence repeat technique was used to assess the genetic variation and structure of the individuals growing in the four remnant localities known to date, with the aim to implement further conservation strategies. Results indicated a degree of differentiation among the four subpopulations, in particular for the Fonni one. The estimates of Nei's genetic diversity (H) ranged from 0.0563 (Fonni) and 0.1104 (Bau 'e Laccos). Analysis of molecular variance values showed that 53% of the total variation may be attributed to the individuals within subpopulations, while 47% is due to differences among subpopulations (P < 0.001). Results also highlighted a scarce gene flow (Nm = 0.503). © 2013 Societá Botanica Italiana.
Articolo in rivista - Articolo scientifico
Carduinae, inter-simple sequence repeats, narrow endemic, population genetics, Sardinia
English
2013
147
500
507
none
Bacchetta, G., Fenu, G., Gentili, R., Mattana, E., Sgorbati, S. (2013). Preliminary assessment of the genetic diversity in Lamyropsis microcephala (Asteraceae). PLANT BIOSYSTEMS, 147, 500-507 [10.1080/11263504.2012.717548].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/48566
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