Unravelling some factors affecting sexual reproduction in rock-specialist shrub: Insight from an endemic Daphne arbuscula (Thymelaeaceae)
Načítavam...
Na stiahnutie
Dátum
2024
Názov časopisu
ISSN časopisu
Názov zväzku
Vydavateľ
Public Library of Science : San Francisco
ISBN
ISSN
1932-6203
Abstrakt
The role of endemic species in global biodiversity is pivotal, and understanding their biology and ecology is imperative for their fitness and long-term survival, particularly in the face of ongoing climatic oscillations. Our primary goal was to investigate the sexual reproduction level of the endangered Western Carpathian endemic Daphne arbuscula (Thymelaeaceae), which inhabits extreme rocky habitats, and to comprehend the influence of specific factors on its reproductive success. We conducted the research across four populations, varying in size and environmental conditions. Over two years, we monitored flower and fruit production, analyzed genetic variability within and among populations, and studied pollination mechanisms. Daphne arbuscula proved to be strictly self-incompatible, with significant variations in flower and fruit production among populations and seasons. The average fruit production percentage consistently remained below 50% across populations, indicating challenges in sexual reproduction. Cold and harsh weather during the reproductive phase had a substantial negative impact on sexual reproduction efficacy, leading to decreased fruit production. Nevertheless, several individuals in sheltered microhabitats displayed significantly higher fruit production, ranging from 60% to 83%, emphasizing the critical role of microhabitat heterogeneity in sustaining sexual reproduction in this species. We found no pronounced differences in genetic diversity within or among populations, suggesting that genetic factors may not critically influence the reproductive success of this endemic species. The implications of our findings might be of paramount importance for the long-term survival of D. arbuscula and offer valuable insights for the development of effective conservation strategies for this species.
Popis
In: PLoS One. San Francisco : Public Library of Science, 2024. ISSN 1932-6203. Vol. 19, no. 5 (2024), pp. 1-19.
Kľúčové slová
rastliny, plants, endemity, endemics, sexuálna reprodukcia, sexual reproduction
Výstup z projektu
APVV-22-0365 Význam reprodukčných systémov, hybridizácie a symbiotickej asociácie pre evolúciu a prežívanie cievnatých rastlín v prostredí skalných biotopov
VEGA 2/0098/22 Život na hrane. Evolučné a bioekologické aspekty stenoendemického druhu Daphne arbuscula Čelak. (Thymelaeaceae) obývajúceho extrémne sklané biotopy
Ministerstvo školstva, mládeže a telovýchovy ČR 90254 e-INFRA CZ
ITMS 313011T721 Komplexný výskum determinantov pre zabezpečenie environmentálneho zdravia
Citácia
Práva a licenčné podmienky
CC BY Creative Commons Attribution 4.0. International
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess