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Exploring genetic diversity and population structure of Turkish Dactylis glomerata L. germplasm using Start Codon Targeted (SCoT) marker system

Muhammad Azhar NadeemDepartment of Biotechnology, Faculty of Science, Mersin University, Yenişehir, Mersin, 33343, TürkiyeMeliha Feryal SarıkayaFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, TürkiyeMuhammed TatarFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, TürkiyeKAĞAN KÖKTENFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, TürkiyeMuhammad Tanveer AltafDepartment of Field Crops, Faculty of Agriculture, Recep Tayyip Erdoğan University, Rize, Türkiye. [email protected]Amjad AliFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, Türkiyeİlker YÜCEFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, TürkiyeQureshiFaculty of Agricultural Sciences and Technologies, Sivas University of Science and Technology, Sivas, 58140, TürkiyeWaqas LiaqatDepartment of Field Crops, Faculty of Agriculture, Recep Tayyip Erdoğan University, Rize, TürkiyeFawad AliDepartment of Plant Resources and Environment, Jeju National University, Jeju, 63243, Republic of KoreaMahmut KaplanDepartment of Field Crops, Faculty of Agriculture, University of Erciyes, Kayseri, TürkiyeRecep Irfan NazliDepartment of Field Crops, Faculty of Agriculture, Cukurova University, Adana, 01250, TürkiyeSezai ErċışlıDepartment of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum, 25240, TürkiyeFaheem Shehzad BalochDepartment of Biotechnology, Faculty of Science, Mersin University, Yenişehir, Mersin, 33343, Türkiye

BMC Plant Biologyjournal2026en

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Annotatsiya

BACKGROUND: Dactylis glomerata L. (Orchard grass) is a widely cultivated forage crop known for its rich nutritional value, making it an ideal daily feed for livestock. This study assessed the genetic diversity and population structure of 180 orchard grass accessions using 12 highly polymorphic Start Codon Targeted (SCoT) primers. RESULTS: A total of 244 reproducible bands were generated with an average polymorphism rate of 85.47%, and the number of polymorphic bands per primer ranged from 11 to 29, with an average of 17.42 bands. Genetic diversity values varied, with the highest (0.389) recorded for SCoT 8 and the lowest (0.253) for SCoT 4. Shannon's information index averaged 0.47 and the mean PIC value was 0.70. The highest genetic distance of 0.81 was observed between Yozgat1 and Çanakkale3, identifying them as the most genetically divergent genotypes in the germplasm. STRUCTURE analysis classified the evaluated germplasm into two populations (Population A and Population B), which was consistent with The Neighbor-Joining tree, Principal Coordinate Analysis (PCoA) supported this pattern, showing a general separation of accessions with some degree of substructuring. CONCLUSIONS: The identified genetic variability, distinct accessions, and two genetically distant genotypes (Yozgat1 and Çanakkale3) provide valuable genomic resources for breeding programs aimed at enhancing the adaptability and productivity of orchard grass.

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Mavzular

Genetic diversity and population structure Genetic and phenotypic traits in livestock Genetics and Plant Breeding

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DOI: 10.1186/s12870-026-08875-2

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