Adaptive responses to flooding in wild rice species with various genomes other than AA

In the present study, 15 accessions of wild rice species belonging to genome groups different from that Oryza sativa were tested for their adaptive response flooding at seedling and mature stages. Under complete submergence stage, reduced underwater shoot elongation high survival rate after recovery period observed in O. minuta as well tetraploid punctata, eichingeri, officinalis, alta, grandiglumis, latifolia, australiensis. This suggests these exhibit tolerance stage. During gradual promoted internodal was diploid brachyantha. possess floating ability. Remarkably, two CCDD species, namely grandiglumis strongly displayed both stage ability suggesting are valuable genetic resources improving adaptability flooding. SUB1A SNORKEL genes known confer sativa, respectively. However, SUB1A, SNORKEL1, SNORKEL2 not detected any investigated study. Our results suggest responses can be achieved independently presence or absence genes.