ArticleScientific reports2025
Genetic diversity assessment of walnut (Juglans regia L.) genotypes from inner Anatolia region Türkiye using ISSR and RAPD markers.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Evaluation of Genetic Diversity in Sugar Beet Using SCoT and ISSR Markers.Plants (Basel, Switzerland) · 2026Article
- Evaluation of genetic diversity and structure of the endangered medicinal plant genusPhytoKeys · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Common walnut (Juglans regia L.) is a globally important nut crop valued for its nutritional and economic benefits. Despite Türkiye's importance as a walnut producer, molecular characterization of local genotypes, particularly from historically cultivated regions such as inner Anatolia remains limited. This study assessed the genetic diversity of 18 walnut genotypes from the inner Anatolia region, Türkiye using two molecular marker systems, including Inter-Simple Sequence Repeat (ISSR) and Random Amplified Polymorphic DNA (RAPD). The polymorphic bands were scored to calculate Jaccard similarity coefficients. Genetic relationships were analyzed using UPGMA dendrograms and Principal Component Analysis (PCA). A total of 72 bands (54 polymorphic; 75.0%) were generated by nine ISSR primers, and 53 bands (42 polymorphic; 79.2%) by five RAPD primers. Both marker systems indicated moderate genetic diversity within the genotypes. Genotypes 'G3', 'G6', and 'G9' had identical banding patterns (similarity = 1.00), likely attributable to their proximate geographic origin and same propagation history, whereas 'G12' and 'G14' were identified as genetically different. Population structure analysis demonstrated consistent clustering patterns, revealing both homogeneous and admixed genotypes. The Mantel test demonstrated a strong correlation (r = 0.81, p < 0.05) between genetic matrices derived from ISSR and RAPD, verifying marker congruence. The results highlight the effectiveness of using ISSR and RAPD markers as an economical method for evaluating genetic structure in under-characterized germplasm. The identification of genetically different genotypes is crucial for conservation and breeding techniques aimed at enhancing traits and genetic resilience in walnuts.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.