Genetic analysis of heading characters in foxtail millet (Setaria italica (L.) P. Beauv.) using the progeny from the cross between the two diverse strains, Gai 53 and Kuromochi
2003
Ichitani, K. (Kagoshima Univ. (Japan)) | Nagao, K. | Narita, Y. | Fujikawa, K. | Samejima, M. | Taura, S. | Sato, M.
Summary Foxtail millet has much varietal difference in heading time. To our knowledge, however, there has been no report on the genetic system controlling heading time in foxtail millet. In the present study, genetic analysis of heading time in foxtail millet was performed using the progeny from the cross between two strains differing in heading time, Kuromochi (KM) and Gai 53 (G53). Response to photoperiod suggested that KM has greater basic vegetative growth (BVG) and photoperiod sensitivity (PS) than G53. The results of genetic analysis indicate that difference in BVG and PS between the two strains is under polygenic control. The geographical distribution of foxtail millet cultivars and the relationship between foxtail millet and other grasses were discussed from the viewpoint of genes controlling heading time.
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