TY - JOUR
T1 - Effects of genes increasing the number of spikelets per panicle, TAW1 and APO1, on yield and yield-related traits in rice
AU - Fukushima, Akira
AU - Ohta, Hisatoshi
AU - Yokogami, Narifumi
AU - Tsuda, Naoto
AU - Yoshida, Akiko
AU - Kyozuka, Junko
AU - Maekawa, Masahiko
N1 - Funding Information:
This work was supported by Japan Society for the Promotion of Science KAKENHI [grant number 16K07580].
Publisher Copyright:
© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
PY - 2017/10/2
Y1 - 2017/10/2
N2 - The genes TAWAWA1 (TAW1) and ABERRANT PANICLE ORGANIZATION1 (APO1) increase the number of spikelets per panicle (SN). In the present study, we examined the effects of these genes on morphological traits, yield, and yield-related traits including yield components using the near-isogenic lines (NILs) in the genetic background of a japonica rice variety, Koshihikari–NIL-taw1, NIL-apo1-D3, and NIL-apo1-D4–in a field experiment. The SN and total number of spikelets per area of the three NILs were larger than those of Koshihikari. However, the yield of the three NILs did not exceed that of Koshihikari due to their low filling ability. Interestingly, our field experiments indicated that TAW1 did not affect the diameter of internodes and the PN, whereas APO1 decreased the PN and increased the diameter of internodes. These results suggest that TAW1 and APO1 differently affect yield-related traits.
AB - The genes TAWAWA1 (TAW1) and ABERRANT PANICLE ORGANIZATION1 (APO1) increase the number of spikelets per panicle (SN). In the present study, we examined the effects of these genes on morphological traits, yield, and yield-related traits including yield components using the near-isogenic lines (NILs) in the genetic background of a japonica rice variety, Koshihikari–NIL-taw1, NIL-apo1-D3, and NIL-apo1-D4–in a field experiment. The SN and total number of spikelets per area of the three NILs were larger than those of Koshihikari. However, the yield of the three NILs did not exceed that of Koshihikari due to their low filling ability. Interestingly, our field experiments indicated that TAW1 did not affect the diameter of internodes and the PN, whereas APO1 decreased the PN and increased the diameter of internodes. These results suggest that TAW1 and APO1 differently affect yield-related traits.
KW - ABERRANT PANICLE ORGANIZATION1 (APO1)
KW - TAWAWA1 (TAW1)
KW - panicle
KW - rice
KW - spikelet
KW - yield
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U2 - 10.1080/1343943X.2017.1365614
DO - 10.1080/1343943X.2017.1365614
M3 - Article
AN - SCOPUS:85031430113
SN - 1343-943X
VL - 20
SP - 485
EP - 489
JO - Plant Production Science
JF - Plant Production Science
IS - 4
ER -