English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Blast disease, caused by the  Magnaporthe oryzae/grisea  species complex, occurs in a wide range of wild and cultivated gramineous plant species including rice, wheat and barley. We inoculated a collection of cultivated ( Hordeum vulgare  ssp.  vulgare  L.) and wild (ssp.  spontaneum ) barley accessions with  M. oryzae Oryza   pathotype (MoO),  Triticum  pathotype (MoT) and  Pennisetum  pathotype (MsP) to quantify the host status of barley, and to identify sources of blast resistance. Unlike wheat, the barley gene pool is rich with sources of complete and partial resistance against  Magnaporthe . Cultivated barley appeared a nonhost to MsP, whereas wild barley showed some degree of susceptibility. All 153 tested rice accessions were resistant to the MoT isolate, suggesting that rice is nonhost to this pathotype. Inoculation of L94/Vada and Vada/SusPtrit RIL mapping populations with MoO and/or MoT isolates of  M. oryzae  indicated one large effect QTL, designated as R moq1 , on the short arm of chromosome 7H against the MoT isolate PY 67.1 in both populations. Resistance in L94 to the MoO isolate was due to a different QTL, located at 5H. An association mapping panel of West European barley cultivars also suggested that most QTLs were pathotype specific. Six blast resistance genes found in the biparental and association mapping studies coincided with map positions of powdery mildew resistance genes viz.  Mlt ,  Mla6 ,  Mlg ,  mlo ,  Mlj , and  Mlhb  genes. Our QTL and association mapping analyses do not support the association of the  mlo  resistance gene with enhanced susceptibility to  M. oryzae  as reported in literature.

Host/nonhost status and genetics of resistance in barley against three pathotypes of Magnaporthe blast fungi