Associating SSR Markers with Soybean Resistance to Iron Deficiency Chlorosis

Autor: Dirk V. Charlson, Randy C. Shoemaker, Silvia R. Cianzio
Rok vydání: 2003
Předmět:
Zdroj: Journal of Plant Nutrition. 26:2267-2276
ISSN: 1532-4087
0190-4167
DOI: 10.1081/pln-120024280
Popis: Iron deficiency chlorosis (IDC) causes soybean yield loss to growers when certain varieties are planted on calcareous soils. Planting IDC‐resistant varieties is the best management practice, although they may still exhibit chlorosis under certain environmental conditions. Environmental variation for chlorosis expression impedes progress in improving IDC resistance. Breeders could use molecular marker‐assisted selection (MAS), an environment‐independent tool, to improve soybeans' resistance to IDC. Our objective was to determine the efficiency of simple sequence repeat (SSR) markers in selecting for IDC resistance in soybean. A breeding population was developed using parents differing in IDC resistance and yield potential. The population was advanced to the F2 and F2:4 generations. Foliar chlorosis data were recorded for parents and F2:4 lines in replicated field tests planted on calcareous soils at two Iowa locations in 2000 and 2001. Chlorosis scores between parents and F2:4 lines varied accordi...
Databáze: OpenAIRE