| Title: | Detection of quantitative trait loci controlling UV-B resistance in soybean |
| Authors: | Shim, H., Ha, B., Yoo, M., Kang, S. |
| Source: | Euphytica 2015, 202(1):109-118 |
| Abstract: | The depletion of stratospheric ozone has resulted in increased amounts of ultraviolet-B radiation (UV-B: 280Ð320 nm) reaching the EarthÕs surface. Even a small increase in the incident UV-B radiation could cause signiÞcant biological effects in plants. In thisstudy, we identiÞed putative quantitative trait loci (QTL) associated with the resistance to enhanced UV-B radiation in soybean. A population of 115 recombinant inbred lines (RILs) derived from a cross between Keunolkong (a sensitive soybean variety) and Iksan 10 (a resistance soybean line) was analyzed. A total of 110 SSR markers were used to construct a linkage map. RILs and both parents were grown with supplemental UV-B radiation in a greenhouse. In order to screen for UV-B resistance, the degree of leaf chlorosis (DLC), degree of leaf shape change (DLS), degree of petiole color change (DPC) and degree of total plant damage (DTP) were evaluated. Using composite interval mapping analysis, one major QTL associated with all of the characteristics, DLC, DLS, DPC, and DTP, was detected on soybean |