caa a22 4500 445324171 CHVBK 20180317142714.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10681-011-0427-9 doi (NATIONALLICENCE)springer-10.1007/s10681-011-0427-9 Effects of acclimation on chilling tolerance in Asian cultivated and wild rice [Elektronische Daten] [Akhil Baruah, Kazumitsu Onishi, Yasuyo Oguma, Noriko Ishigo-Oka, Naohiro Uwatoko, Yoshio Sano] Tolerance to low temperature can be enhanced by pre-exposure to low, non-harmful temperatures, a process known as acclimation. The effects of acclimation on chilling tolerance in species from tropical and subtropical regions are not well understood. Therefore, we investigated whether acclimation improved chilling tolerance at the plumule and seedling stages in Asian rice. A comparison of the effect of acclimation between chilling tolerance scores from a tolerant (A58) and a susceptible (W107) strain demonstrated that acclimation enhances chilling tolerance especially in the tolerant strain, indicating that considerable genetic variation in acclimation capacity exists. The genetic variation in chilling tolerance in acclimated plants was investigated using 57 strains derived from cultivated (Oryza sativa L. ssp. japonica and ssp. indica) and wild (O. rufipogon Griff.) rice. The genetic differentiation of the japonica and indica subspecies of cultivated rice with regard to chilling tolerance was more prominent in the presence than in the absence of acclimation. Furthermore, latitudinal clines for chilling tolerance were observed in both acclimated plumules and seedlings of wild rice, whereas without acclimation, a latitudinal cline was observed only at the plumule stage. This suggests that acclimation capacity, as well as intrinsic chilling tolerance, might contribute to local adaptation. QTLs involved in acclimated chilling tolerance at the plumule stage are different from those involved in intrinsic chilling tolerance. The present results indicate that the maximum genetic potential for chilling tolerance is achieved by acclimation, giving cautions for evaluation of genetic resources in rice. Springer Science+Business Media B.V., 2011 Acclimation nationallicence Chilling tolerance nationallicence Oryza rufipogon nationallicence Oryza sativa nationallicence Quantitative trait loci nationallicence Baruah Akhil Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Onishi Kazumitsu Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Oguma Yasuyo Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Ishigo-Oka Noriko Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Uwatoko Naohiro Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Sano Yoshio Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut Euphytica Springer Netherlands 181/3(2011-10-01), 293-303 0014-2336 181:3<293 2011 181 10681 https://doi.org/10.1007/s10681-011-0427-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0427-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baruah Akhil Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 700 1- Onishi Kazumitsu Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 700 1- Oguma Yasuyo Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 700 1- Ishigo-Oka Noriko Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 700 1- Uwatoko Naohiro Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 700 1- Sano Yoshio Plant Breeding Laboratory, Department of Applied Science, Research Faculty of Agriculture, Hokkaido University, 060-8589, Sapporo, Japan aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 181/3(2011-10-01), 293-303 0014-2336 181:3<293 2011 181 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer