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Prevalence, molecular identification and genotyping of the crayfish plague pathogen, Aphanomyces astaci in major narrow-clawed crayfish (Pontastacus leptodactylus Eschscholtz, 1823) populations from Türkiye     
Yazarlar
Süleyman Akhan
Akdeniz Üniversitesi, Türkiye
İfakat Tülay Çağatay
Akdeniz Üniversitesi, Türkiye
Selçuk Berber
Çanakkale Onsekiz Mart Üniversitesi, Türkiye
Büşra Taştan
Arş. Gör. Dr. Yiğit TAŞTAN Arş. Gör. Dr. Yiğit TAŞTAN
Kastamonu Üniversitesi, Türkiye
Tuba Dalar
Özet
Crayfish plague is considered the most important crayfish disease globally. It is caused by the fungus-like agent, Aphanomyces astaci. This study aimed to identify and determine the prevalence of A. astaci using PCR in narrow-clawed crayfish (Pontastacus leptodactylus) populations from across Türkiye. A PCR was carried out with primers specific to the internal transcribed spacer region of the A. astaci pathogen on both telson and abdominal cuticle tissues from crayfish individuals from 41 different locations. Aphanomyces astaci was detected in the crayfish from 34 of the locations. Molecular diagnosis showed the prevalence rates of A. astaci to be between 0% and 68.2%. For 7 of the 34 locations, the strain of A. astaci was determined. Microsatellite analysis of tissue from individuals with positive PCR results revealed the A. astaci genotypes in seven populations. Genotype B was found to be the predominant genotype responsible for crayfish plague in Turkish crayfish populations. The Psl genotype (genotype B) was determined in six of the populations, and the As genotype (genotype A) was detected in only one. Crayfish plague poses a significant threat to crayfish populations, necessitating the development of rapid, highly sensitive diagnostic methods. An understanding of the sensitivity of the PCR detection method and of the prevalence and genotyping of A. astaci in Turkish crayfish populations has been gained from this study.
Anahtar Kelimeler
Aphanomyces astaci | clinical samples | crayfish | PCR
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Veterinary Research
Dergi ISSN 2450-8608
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili Türkçe
Basım Tarihi 11-2024
Cilt No 68
Sayı 4
Doi Numarası 10.2478/jvetres-2024-0061
Makale Linki https://doi.org/10.2478/jvetres-2024-0061