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Simple sequence repeat markers linked to a major QTL controlling pod shattering in soybean |
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| Authors: | H Funatsuki M Ishimoto H Tsuji K Kawaguchi M Hajika and K Fujino |
| Institution: | National Agricultural Research Center for Hokkaido Region (NARCH), Hitsujigaoka, Sapporo 062-8555, E-mail:;;National Institute of Crop Science, 2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518;;Department of Crop Physiology, Graduate School of Agriculture, Hokkaido University, 9 Kita 9 Nishi, Sapporo 060-8589, Japan;;Present address: Ministry of Agriculture, Forestry and Fisheries, Kasumigaseki, Tokyo 100-8950, Japan |
| Abstract: | Shattering of soybean pods prior to harvest leads to a reduction in yield. In order to identify simple sequence repeat (SSR) markers linked to quantitative trait loci (QTLs) conditioning pod shattering, QTL analysis was conducted using an recombinant inbred line (RIL) population segregating for this trait. The degrees of pod‐shattering resistance were evaluated by heat treatment applied to pods harvested from plants in the field and in a growth chamber. Composite interval mapping identified one major QTL between SSR markers Sat_093 and Sat_366 on linkage group J for both environments. The position and the effect of this QTL were confirmed in an F2 population derived from a cross between the pod shattering‐susceptible parental cultivar and a pod shattering‐resistant RIL. The SSR markers linked to the major QTL will be useful for marker‐assisted selection in soybean‐breeding programmes. |
| Keywords: | Glycine max marker-assisted selection microsatellite marker pod dehiscence quantitative trait locus analysis |