作者: Jun Abe , Guo-Ping Guan , Yoshiya Shimamoto
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摘要: Bolting tendency in sugar beet varies among breeding lines and cultivars. Four crosses were made between susceptible resistant to bolting order study the genetic basis of tendency. percentage F2, after 8 weeks low temperature treatment, varied crosses, suggesting a complicated control Different segregation ratios observed, particular, families derived from F1 plants those their non-bolting siblings, former showing significantly higher than latter. A marker-assisted analysis with seven isozyme loci, Ak1, Gdh2, Idh1, Lap, Mdh1, Pgi2 Pgm1, revealed that locus marked effect on was located near Idh1. Because close linkage Idh1 B for annuality, gene tagged by appeared be equivalent or similar B′ easy allelic as reported Owen et al. (1940). The results obtained suggest may not only have an important role determining growth habits but also various degrees individual plants. linked pair, Ak1-Lap, found affect tendency, although effects depending tested.