Journal of Integrative Agriculture ›› 2017, Vol. 16 ›› Issue (03): 532-539.DOI: 10.1016/S2095-3119(16)61485-5

所属专题: 线虫合辑Nematology

• 论文 • 上一篇    下一篇

  

  • 收稿日期:2016-07-07 出版日期:2017-03-20 发布日期:2017-03-07

Morphological and molecular characterizations of cereal cyst nematode Heterodera avenae Wollenweber, 1924 from the Czech Republic

Shesh Kumari   

  1. Division of Crop Protection and Plant Health, Crop Research Institute, Prague 16106, Czech Republic
  • Received:2016-07-07 Online:2017-03-20 Published:2017-03-07
  • Contact: Shesh Kumari, Tel: +420-233022436, E-mail: kumari@vurv.cz
  • Supported by:

    This work was supported by the National Agency of Agriculture Research of the Czech Republic (QJ1230159).

Abstract: The cereal cyst nematode, Heterodera avenae Wollenweber, 1924, is a major pest of cereal crops throughout the world and causes serious yield losses, especially of wheat.  Previous studies have shown that this species is widely distributed in the Czech Republic.  In this study, seven populations of H. avenae were molecularly studied, and one population was morphologically described.  Three regions (18S, 28S, and internal transcribed spacer 1) of ribosomal DNA were sequenced and the analysis of the 18S gene of six populations did not reveal any variation, whereas the internal transcribed spacer 1 and 28S sequences of six populations differed by only two nucleotides from a population in ?ilina.  Precise and quick identification of cereal cyst nematodes is important for effective control measures and ribosomal sequence analyses of seven populations in this study will be useful in future phylogenetic studies of Heterodera spp. occurring in the Czech Republic.

Key words:  Heterodera avenae, PCR, ribosomal DNA, sequencing, nematode