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Development of an Aus-Derived Nested Association Mapping (Aus-NAM) Population in Rice

Justine KitonyGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanHidehiko SunoharaEnvironmental Control Center Co., Ltd., Hachioji 193-0832, JapanMikako TasakiGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanJun-ichi MoriGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanAkihisa ShimazuGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanVincent P. ReyesGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanHideshi YasuiFaculty of Agriculture, Kyushu University, 744 Motooka, Fukuoka 819-0395, JapanYoshiyuki YamagataFaculty of Agriculture, Kyushu University, 744 Motooka, Fukuoka 819-0395, JapanAtsushi YoshimuraFaculty of Agriculture, Kyushu University, 744 Motooka, Fukuoka 819-0395, JapanMasanori YamasakiFood Resources Education and Research Center, Graduate School of Agricultural Science, Kobe University, Kasai 675-2103, JapanShunsaku NishiuchiGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, JapanKazuyuki DoiGraduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Furo-cho, Nagoya 464-8601, Japan

2021en

ABI

Аннотация

A genetic resource for studying genetic architecture of agronomic traits and environmental adaptation is essential for crop improvements. Here, we report the development of a rice nested association mapping population (aus-NAM) using 7 aus varieties as diversity donors and T65 as the common parent. Aus-NAM showed broad phenotypic variations. To test whether aus-NAM was useful for quantitative trait loci (QTL) mapping, known flowering genes (Ehd1, Hd1, and Ghd7) in rice were characterized using single-family QTL mapping, joint QTL mapping, and the methods based on genome-wide association study (GWAS). Ehd1 was detected in all the seven families and all the methods. On the other hand, Hd1 and Ghd7 were detected in some families, and joint QTL mapping and GWAS-based methods resulted in weaker and uncertain peaks. Overall, the high allelic variations in aus-NAM provide a valuable genetic resource for the rice community.

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DOI: 10.3390/plants10061255

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