TY - JOUR
T1 - A follow-up study for biomass yield QTLs in rice
AU - Matsubara, Kazuki
AU - Yonemaru, Jun Ichi
AU - Kobayashi, Nobuya
AU - Ishii, Takuro
AU - Yamamoto, Eiji
AU - Mizobuchi, Ritsuko
AU - Tsunematsu, Hiroshi
AU - Yamamoto, Toshio
AU - Kato, Hiroshi
AU - Yano, Masahiro
N1 - Publisher Copyright:
© 2018 Matsubara et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
PY - 2018/10
Y1 - 2018/10
N2 - The biomass yield (plant weight) of rice fluctuates from year to year. In a previous study, we demonstrated that six quantitative trait loci (QTLs) contribute to the variation in the plant weight of recombinant inbred lines (RILs) of high-yielding Japanese rice cultivars. However, it remains unclear whether the effects of those QTLs are stable over multiple years. Therefore, we evaluated the effect of the alleles on the plant weight of RILs over multiple years, including a change of fertilization level (i.e., in different environments). Even though the biomass yields of all RILs fluctuated among environments, RILs that were selected on the basis of the genotypes of the detected QTLs had a stable rank order of plant weight that corresponded to their genotypes. This multiple-environment experiment reveals the highly significant contribution of both genotypic and environmental variances to the observed variance in plant weight. A marginally significant QTL-environment interaction was detected at only one of the six QTLs, with a subtle contribution. These results support the idea that the biomass yield of rice can be improved through QTL-based allele selection.
AB - The biomass yield (plant weight) of rice fluctuates from year to year. In a previous study, we demonstrated that six quantitative trait loci (QTLs) contribute to the variation in the plant weight of recombinant inbred lines (RILs) of high-yielding Japanese rice cultivars. However, it remains unclear whether the effects of those QTLs are stable over multiple years. Therefore, we evaluated the effect of the alleles on the plant weight of RILs over multiple years, including a change of fertilization level (i.e., in different environments). Even though the biomass yields of all RILs fluctuated among environments, RILs that were selected on the basis of the genotypes of the detected QTLs had a stable rank order of plant weight that corresponded to their genotypes. This multiple-environment experiment reveals the highly significant contribution of both genotypic and environmental variances to the observed variance in plant weight. A marginally significant QTL-environment interaction was detected at only one of the six QTLs, with a subtle contribution. These results support the idea that the biomass yield of rice can be improved through QTL-based allele selection.
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U2 - 10.1371/journal.pone.0206054
DO - 10.1371/journal.pone.0206054
M3 - Article
C2 - 30352074
AN - SCOPUS:85055612063
SN - 1932-6203
VL - 13
JO - PloS one
JF - PloS one
IS - 10
M1 - e0206054
ER -