DArTseq-generated SNPs revealed low genetic diversity and genetic erosion along life stages in fragmented populations of Afrocarpus gracilior (Pilg.) C. N.Page in southern Ethiopia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41340%2F24%3A100910" target="_blank" >RIV/60460709:41340/24:100910 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.foreco.2024.122256" target="_blank" >https://doi.org/10.1016/j.foreco.2024.122256</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.foreco.2024.122256" target="_blank" >10.1016/j.foreco.2024.122256</a>
Alternative languages
Result language
angličtina
Original language name
DArTseq-generated SNPs revealed low genetic diversity and genetic erosion along life stages in fragmented populations of Afrocarpus gracilior (Pilg.) C. N.Page in southern Ethiopia
Original language description
Forest fragmentation can have severe genetic impacts that threaten the long-term viability of tree species, though susceptibility varies by species. This study investigates the genetic effects of fragmentation on Afrocarpus gracilior populations in traditional agroforestry systems and relict forest patches. We used single nucleotide polymorphism (SNP) markers generated by the DArTseq platform to assess genetic diversity and population structure in both adult and progeny cohorts. Our findings indicate overall low genetic diversity (H-E < 0.1) across all A. gracilior populations studied, with progeny cohorts showing even lower diversity than adults. Progeny from isolated or few mother trees exhibited the lowest genetic diversity, suggesting heightened genetic drift and inbreeding. Genetic differentiation between populations ranged from little (F-ST < 0.05) to moderate (0.05 < F-ST < 0.15), with progeny cohorts from smaller populations showing relatively higher differentiation and significant index of association scores. A Mantel test found no significant correlation between genetic and geographic distances. Analysis of molecular variance indicated that most genetic variation occurred within populations (57-61 %), rather than between populations (1.07-4.93 %) or individuals (about 38 %). Clustering analysis using the discriminant analysis of principal components (DAPC) method, classified the genotypes into five groups, whereas phylogenetic analysis identified three major clusters with further subgrouping. Overall, the study highlights low genetic diversity in A. gracilior populations, with significant inbreeding and genetic drift in progeny from small, isolated populations. These results are crucial for informing conservation, restoration, and genetic rescue efforts for the species.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40102 - Forestry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Forest Ecology and Management
ISSN
0378-1127
e-ISSN
0378-1127
Volume of the periodical
572
Issue of the periodical within the volume
NOV 15 2024
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
15
Pages from-to
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UT code for WoS article
001312769900001
EID of the result in the Scopus database
2-s2.0-85203022285