Genetic diversity and structure of seed pools in an old planted Pinus thunbergii population and seed collection strategy for gene preservation

Iwaizumi, Masakazu G.; Mukasyaf, Aziz Akbar; Tamaki, Ichiro; Nasu, Jin'ya; Miyamoto, Nobuo; Tamura, Miho; Watanabe, Atsushi

doi:10.1007/s11295-022-01584-5

Cited by 1 publication

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thasos has a volcanic origin, with abundant limestone and marble [48]. Besides Pinus brutia and P. nigra, which are the main forest species of the island, there is also a rich plant community of Quercus coccifera L., Phillyrea latifolia L., Pistacia terebinthus L., P. lentiscus L., Arbutus unedo L., A. andrachne L., Myrtus communis L., and Taxus baccata, as well as shrubs (e.g., Erica arborea L., E. manipuliflora Salisb., Cistus creticus L., C. salviifolius L., Paliurus spina-christi In recent years, a significant decrease in the number of natural populations of the species has been observed in different parts of Europe [11]. This decline is primarily due to two factors: long-term human impacts and climate change.…”

Section: Study Areamentioning

confidence: 99%

“…It is therefore imperative that conservation measures are taken for these species to preserve their genetic diversity and potential adaptive values for their long-term conservation [9,10]. While there have been many studies on the partitioning of genetic diversity in widespread forest species [11], very few studies have studied the partitioning of genetic diversity in forest species that grow sparsely [12]. Interestingly, even fewer studies have been devoted to the development of these species growing in temperate regions than those growing in tropical regions [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Towards the Conservation of Monumental Taxus baccata L. Trees of Thasos Island: Genetic Insights

Malliarou,

Avramidou,

Ranis

et al. 2023

Forests

View full text Add to dashboard Cite

Taxus baccata L. is a tertiary relict, long-lived, wind-pollinated dioecious tree species found throughout Europe. In the rocky mountains of Thasos island, monumental old trees create a unique area of natural beauty. In recent times, the need to implement conservation measures for key endangered species such as Taxus baccata has intensified. Exploring the genetic diversity of the species is a prerequisite for successful forest management decisions aimed at conservation. In this study, 28 monumental trees from two natural populations of Thasos were investigated using eight Simple Sequence Repeat markers in order to assess the levels of genetic diversity and genetic differentiation within the individuals, to estimate the degree of inbreeding and the effective population size of each population, and to discuss the impact this study has on conservation efforts for the species. Although the population size was small (14 individuals per population), the results showed moderate to high genetic diversity parameters. The mean expected heterozygosity was He = 0.649 and the number of effective alleles was Ne = 3.270 for both populations. Moreover, allelic richness (AR = 3.395) was high, indicating a variable genetic pool which is probably a result of a past established expansion of the species in the area. The results of the present study present a unique genetic pool harbored by specific trees, which is an important advantage for ensuring their conservation and resistance against biotic and abiotic threats. Our study paves the way towards conservation measures, which can be prioritized as follows: (a) in situ conservation, (b) seed bank establishment, and (c) in vitro propagation in order to secure future resilience and sustainability of the species.

show abstract

Section: Study Areamentioning

confidence: 99%