**1. Introduction**

76 Soybean – Genetics and Novel Techniques for Yield Enhancement

Yano, M., Katayose, Y., Ashikari, M., Yamanouchi, U., Monna, L., Taguchi, F., Baba, T.,

Yamamoto, K., Umehara, Y., Nagamura, Y. & Sasaki, T. (2000). *Hd1*, a major photoperiod sensitivity quantitative trait locus in rice, is closely related to the Arabidopsis flowering time gene *CONSTANS*. *The Plant Cell*, Vol. 12, pp. 2473-2483
