Inheritance of resistance to bacterial blight in seven cultivars of rice

Sahu, R. K. ; Khush, G. S. (1989) Inheritance of resistance to bacterial blight in seven cultivars of rice Plant Disease, 73 (8). pp. 688-691. ISSN 0191-2917

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Official URL: http://www.apsnet.org/publications/PlantDisease/Ba...

Abstract

The mode of inheritance and allelicgr relationships of resistance genes for bacterial blight (caused by Xanthomonas campestris pv. oryzae) were investigated in seven rice cultivars. Four races of the bacterial blight pathogen from the Philippines were used for studying the disease reactions of parental, F1, and F2 populations. The reactions of F1 and F2 populations from the crosses of seven cultivars with three testers (TN1, IR22, and CAS209) revealed that ADT22, Mondba, Hegarmanah-2, and BR116-3B-53 each have Xa-4 and Xa-10 genes for resistance. The cultivars Arairaj; BR11, and Chhatari have only the Xa-10 gene. These seven cultivars and CAS209 constitute a new group, distinct from the three known groups of cultivars resistant to bacterial blight. This new group is here designed group IV, or the CAS209 group.

Item Type:Article
Source:Copyright of this article belongs to The American Phytopathological Society.
Keywords:Dominant; Nonallelic; Oryza sativa; Recessive
ID Code:83788
Deposited On:22 Feb 2012 12:58
Last Modified:22 Feb 2012 12:58

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