Informed conservation management of rare tree species needs knowledge of species composition, their genetic characteristics and ecological niche

Wolff, Kirsten; Depner, Bernhard; Logan, Samuel A.; Heurich, Marco

doi:10.1016/j.foreco.2020.118771

Cited by 2 publications

(2 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An alternative hypothesis would be that our populations in Central Europe could be genetically more diverse due to the meeting of several post-glacial migration routes (Phuekvilai 2014;Semerikova et al 2020). Tilia species could retain high genetic diversity for a long time due to their high abundance during warmer periods, outcrossing mating system and increased longevity (Myking 2002;Wolff et al 2021). However, this would require extensive sampling of the native populations of the geographic region.…”

Section: Discussionmentioning

confidence: 99%

“…Thus, even though small populations are more vulnerable to inbreeding (Ellstrand and Elam 1993), our value indicates that groups experience gene flow (heterozygote excess) and/or did not develop inbreeding in the original population where the propagation material came from. In addition, Tilia species are known for being highly outcrossing, with inbreeding coefficients (F IS ) close to zero (Wolff et al 2021).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Genetic diversity in a historic lime tree allée of Széchenyi Castle in Nagycenk, Hungary

Tóth

Szilágyi

Patyi

et al. 2022

Genet Resour Crop Evol

View full text Add to dashboard Cite

Trees are key components of historic gardens and are valuable sources of genetic diversity that need preservation to enrich native populations’ genetic basis in order to enhance long-term viability, and facilitate the species’ adaptation to changing climatic and environmental conditions. The primary objective of our study was to assess the genetic diversity, structure and relationships of the Tilia cordata Mill. allée at Széchenyi Castle in Nagycenk (UNESCO heritage site), Hungary, to infer the late-Baroque garden’s rich genetic heritage and conservation importance. The small leaved lime individuals at Nagycenk, with an age of 200 years, maintained high genetic diversity with non-significant inbreeding and high allelic richness and number of private alleles. Genetic diversity was similar to Central European natural populations and slightly higher compared to other plant collections, e.g. Eszterházy Castle garden at Fertőd. The surveyed trees exhibited two age groups unrelated with shallow genetic differentiation indicating the potential seed source origin from the local geographic area. Bayesian clustering of individuals showed significant differences from the individuals growing at Fertőd-Esterházy gardens (approx. in a 15 km distance) and other T. cordata cultivars. We concluded that the T. cordata collection of Nagycenk is a unique genetic heritage of the former natural vegetation due to its genetic variability and divergence, which would be a valuable source of future breeding programs and conservation.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%