Plant-parasitic nematodes associated with wheat in Central, Eastern, and Southeastern Kazakhstan
Yükleniyor...
Dosyalar
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Phytopathological Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Kazakhstan is one of the biggest wheat producers, however, its wheat production is far below the average international wheat production standard due to biotic and abiotic stressors. Plant-parasitic nematodes are devastating for cereal production systems worldwide. A comprehensive survey was conducted in 2019 to identify plant-parasitic nematodes associated with wheat in different locations of central, eastern, and southeastern Kazakhstan. The results revealed 33 root-lesion and 27 cyst nematode populations from the 77 localities sampled. These two genera occurred in separate or in mixed populations. The root-lesion populations were identified as Pratylenchus neglectus and P. thornei while all cyst nematodes were identified as Heterodera filipjevi. The identification of nematodes was firstly performed based on morphological and morphometric features and confirmed by BLAST and phylogenetic analyses based on the internal transcribed spacer and the D2-D3 expansion located in the 28S gene of ribosomal DNA for CCN and RLN populations, respectively. Pratylenchus neglectus and P. thornei populations from Kazakhstan showed a high similarity with the American, European, and Asian populations. Heterodera filipjevi populations formed a well-supported cluster with the corresponding populations from different countries and showed a slightly intraspecific polymorphism. Kazakhstan populations of H. filipjevi may have multiple introductions in Kazakhstan due to the divergence among them. The results of this study are of great importance for breeding programs and will enable awareness for extension advisors to develop measures to control these nematodes in cereal cropping areas in Kazakhstan.
Açıklama
The authors would like to thank CIMMYT and the Research and Development Unit (BAP) of Bolu Abant Izzet Baysal University for funding this study.
Anahtar Kelimeler
Heterodera Spp., Pratylenchus Spp, ITS and D2-D3 Regions, Phylogeny, Taxonomy, Wheat
Kaynak
Plant Disease
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
105
Sayı
9
Künye
Imren, M., Özer, G., Paulitz, T. C., Morgounov, A., & Dababat, A. A. (2021). Plant-parasitic nematodes associated with wheat in central, eastern, and southeastern Kazakhstan. Plant Disease, 105(9), 2299-2305.
