Genetic loci associated with iron deficiency tolerance in soybean

Abstract

The invention relates to methods and compositions for identifying soybean plants that are tolerant, have improved tolerance or are susceptible to iron deficient growth conditions. The methods use molecular genetic markers to identify, select and/or construct disease-tolerant plants or identify and counterselect disease-susceptible plants. Soybean plants that display tolerance or improved tolerance to Phytophthora root rot infection that are generated by the methods of the invention are also a feature of the invention.

1 - 22 . (canceled) 
     
     
         23 . A plant comprising in its genome one or more locus related to tolerance or susceptibility to iron deficiency, wherein the one or more locus is within a chromosome interval flanked by and including SATT334 and SATT510 or a chromosome interval flanked by and including SATT277 and SATT433. 
     
     
         24 . A plant comprising in its genome one or more locus related to tolerance or susceptibility to iron deficiency, wherein the one or more locus is closely linked to a marker selected from the group consisting of SATT334, SCT — 033, SAT — 120, SATT510, SAC1724, SATT319, SAT — 142-DB, SATT708-TB, SATT460, P13073A-1, and SATT307. 
     
     
         25 . The plant of  claim 23 , wherein the plant is a soybean line or soybean variety. 
     
     
         26 . The plant of  claim 24 , wherein the plant is a soybean line or soybean variety. 
     
     
         27 . The plant of  claim 23 , wherein the tolerance or susceptibility is assayed in a population of soybean in a stand that is known to produce chlorotic soybean plants. 
     
     
         28 . The plant of  claim 24 , wherein the tolerance or susceptibility is assayed in a population of soybean in a stand that is known to produce chlorotic soybean plants. 
     
     
         29 . The plant of  claim 23 , wherein the plant comprises an elite soybean strain or an exotic soybean strain. 
     
     
         30 . The plant of  claim 24 , wherein the plant comprises an elite soybean strain or an exotic soybean strain. 
     
     
         31 . A field comprising a plurality of plants of  claim 23 . 
     
     
         32 . A field comprising a plurality of plants of  claim 24 . 
     
     
         33 . A seed of the plant of  claim 23 . 
     
     
         34 . A seed of the plant of  claim 24 . 
     
     
         35 . A method of producing a plant with tolerance or susceptibility to iron deficiency, the method comprising planting the seed of  claim 33  in soil and growing a plant therefrom. 
     
     
         36 . A method of producing a plant with tolerance or susceptibility to iron deficiency, the method comprising planting the seed of  claim 34  in soil and growing a plant therefrom.