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Pyramiding three bacterial blight resistance genes (xa5, xa13 and Xa21) using marker-assisted selection into indica rice cultivar PR106
Genes in combinations were found to provide high levels of resistance to the predominant Xoo isolates from the Punjab and six races of Xoo from the Philippines, and Xa21 was the most effective, followed by xa5.
A novel bacterial blight resistance gene from Oryza nivara mapped to 38 kb region on chromosome 4L and transferred to Oryza sativa L.
The BB resistance gene identified and transferred from O. nivara is novel and is tentatively designated as Xa30(t).
Genotypic and Pathotypic Diversity of Xanthomonas oryzae pv. oryzae, the Cause of Bacterial Blight of Rice in Punjab State of India
Pyramiding of two/more partially effective known Xa genes and/or search for new disease resistance genes effective against the wider Xoo population appears to be the most appropriate approach for BB management in the near future.
New PCR-based sequence-tagged site marker for bacterial blight resistance gene Xa38 of rice
Xa38, a BB resistance gene identified from Oryza nivara acc.
Development of high yielding IR64 × Oryza rufipogon (Griff.) introgression lines and identification of introgressed alien chromosome segments using SSR markers
A limited backcross strategy was used to introgress QTL associated with yield and yield components from Oryza rufipogon to cultivated rice, finding that some of the QTL are stable across the environments and genetic backgrounds and can be exploited universally.
Genetics and Genomics of Bacterial Blight Resistance in Rice
The interaction between rice-Xoo could be deciphered and pave a way to study the molecular aspects of bacterial pathogenesis and host counter measures like innate immunity and R gene–mediated immunity.
Genetic diversity studies of elite cotton germplasm lines using RAPD markers and morphological characteristics
Results reveal a narrow genetic base within hirsutum and within arboreum groups, which is similar to that found in the wild species G. thurberi.
Tagging of an Aegilops speltoides Derived Leaf Rust Resistance Gene Lr 28 with a Microsatellite Marker in Wheat
- Y. Vikal, P. Chhuneja, Rippy Singh, H. Dhaliwal
- BiologyJournal of Plant Biochemistry and Biotechnology
To identify the molecular markers linked to Lr28 the available microsatellite markers for wheat chromosome arm 4AL were surveyed on near isogenic lines (NILs) of Triticum aestivum cultivars having Lr26 gene, other Lrgenes and susceptible cultivars and a null allele of Xgwm 160 marker was found to be associated with Lr 28.
Marker-assisted pyramiding of leaf rust resistance genes Lr24 and Lr28 in wheat (Triticum aestivum)
A study was undertaken to pyramid two effective leaf rust resistance genes Lr24 and Lr28 in ‘PBW 343’ wheat, a ruling variety of North Western Plains Zone using marker assisted selection.
Oryza nivara (Sharma et Shastry) the progenitor of O. sativa (L.) subspecies indica harbours rich genetic diversity as measured by SSR markers
Based on genetic diversity, resistance to bacterial blight and other morphological traits in these accessions, a set of 13 accessions has been identified that are now being used for detection and transfer of novel QTL alleles for productivity traits into the 0.