US 11,744,199 B2
Selection based on optimal haploid value to create elite lines
Hans Dieter Daetwyler, Victoria (AU); Benjamin John Hayes, Victoria (AU); Kelly Robbins, Indianapolis, IN (US); Matthew James Hayden, Victoria (AU); and German Spangenberg, Victoria (AU)
Assigned to Corteva Agriscience LLC
Filed by Dow AgroSciences LLC, Indianapolis, IN (US)
Filed on Sep. 11, 2018, as Appl. No. 16/127,813.
Application 16/127,813 is a division of application No. 14/586,488, filed on Dec. 30, 2014, abandoned.
Claims priority of provisional application 62/092,737, filed on Dec. 16, 2014.
Claims priority of provisional application 61/939,599, filed on Feb. 13, 2014.
Claims priority of provisional application 61/922,148, filed on Dec. 31, 2013.
Prior Publication US 2019/0021250 A1, Jan. 24, 2019
Int. Cl. A01H 1/04 (2006.01); A01H 1/02 (2006.01); C12Q 1/6895 (2018.01); A01H 1/08 (2006.01)
CPC A01H 1/04 (2013.01) [A01H 1/02 (2013.01); A01H 1/08 (2013.01); C12Q 1/6895 (2013.01); C12Q 2600/13 (2013.01)] 23 Claims
 
1. A method for providing increased genetic gain and maintaining genetic diversity in a progeny plant population, the method comprising:
haplotyping each plant of two or more initial plants for a plurality of individual haploid genome segments, wherein each initial plant comprises a polyploid genome and each haploid genome segment has a haploid value (HV) for the one or more traits of interest and the sum of all HVs in an individual plant's haploid genome is the combined haploid value (CHV) for that individual plant;
crossing one of the haplotyped initial plants (a first initial parental plant) with a second haplotyped initial plant (a second initial parental plant) to produce a progeny plant population;
determining an optimal haploid value (OHV) that is the sum of the highest HVs for each haploid genome segment in the first initial parental and second initial parental plants and OHV is the highest CHV obtainable in the progeny plant population from the plurality of genome segments in the first initial parental plant and second initial parental plant;
haplotyping plants of the progeny plant population and determining the CHV of the haplotyped progeny plants;
selecting at least one progeny parental plant from the progeny plant population, wherein each selected progeny parental plant has a CHV that is higher and closer to the OHV than the CHVs of the progeny plants that are not selected; and
crossing each selected progeny parental plant with another plant to thereby produce a next generation progeny plant population.