| Literature DB >> 26493141 |
Takashi Sayama1, Tetsuya Nakazaki1, Goro Ishikawa1, Kazuhiro Yagasaki2, Naohiro Yamada2, Naoko Hirota1, Kaori Hirata1, Takanori Yoshikawa1, Hiroki Saito1, Masayoshi Teraishi1, Yutaka Okumoto1, Takuji Tsukiyama1, Takatoshi Tanisaka3.
Abstract
In soybean (Glycine max [L.] Merr.), varieties with seed-flooding tolerance at the geminating stage are desirable for breeding in countries with much rainfall at sowing time. Our study revealed great intervarietal variation in seed-flooding tolerance as evaluated by germination rate (GR) and normal seedling rate (NS). Pigmented seed coat and small seed weight tended to give a positive effect on seed-flooding tolerance. Subsequently, QTL analysis of GR and NS were performed and a total of four QTLs were detected. Among them, Sft1 on the linkage group H (LG_H) exhibited a large effect on GR after a 24-h treatment; however, Sft2 near the I locus on LG_A2 involved in seed coat pigmentation exhibited the largest effect on seed-flooding tolerance. Sft1, Sft3 and Sft4 were independent of seed coat color and seed weight. Based on the results, we discussed the physiological effects of genetic factors responsible for seed-flooding tolerance in soybean.Entities:
Keywords: Intervarietal variation; QTL analysis; Seed coat color; Seed weight; Seed-flooding tolerance; Soybean (Glycine max [L.] Merr.)
Year: 2009 PMID： 26493141 DOI： 10.1016/j.plantsci.2009.01.007
Source DB: PubMed Journal: Plant Sci ISSN： 0168-9452 Impact factor: 4.729