Front cover image for Evaluation of yield performance in rice near-isogenic lines with increased spikelet number

Peer-reviewed

Evaluation of yield performance in rice near-isogenic lines with increased spikelet number

Akihiro Ohsumi, Toshiyuki Takai, Masashi Ida, Toshio Yamamoto, Yumiko Arai-Sanoh, Masahiro Yano, Tsuyu Ando, Motohiko Kondo
Rice yield potential is determined by the balance between sink size and source capacity. To clarify the factors that limit yield in temperate japonica cultivars, we compared the yield performance of Sasanishiki, a temperate japonica cultivar, with those of three near-isogenic lines (NILs) of Sasanishiki with introgression of quantitative trait loci (QTL) derived from a high-yielding indica cultivar, Habataki: qSBN1, which increases the number of secondary rachis branches; qPBN6, which increases the number of primary rachis branches; and a pyramid line that combines these two QTLs. NIL ( SBN1), NIL ( PBN6), and NIL ( SBN1
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