Marker Assisted Breeding and the 2018 Seed Lineup  03/21/17 1:02:03 PM

Marker assisted breeding (MAB) or marker aided selection (MAS) is a process whereby a marker (for our purpose one based on DNA/RNA variation) is used for indirect selection of a genetic determinant or determinants of a trait of interest  (i.e. plant disease tolerance, yield, etc)  Marker assisted selection (MAS) is indirect selection process where a trait of interest is selected not based on the trait itself but on a marker linked to it.  For example if MAS is being used to select genetic lines with a disease, the level of disease is not quantified but rather a marker allele (DNA strand) which is linked with disease is used to determine disease presence. The assumption is that linked allele associates with the gene and/or quantitative trait of interest.  MAS can be useful for traits that are difficult to measure, exhibit low heritability, and/or are expressed late in development—many times equating to yield potential.
 
Confusing??  Somewhat, however, I mention all of that to really “frame up” some of the breeding back ground and differences between Asgrow vs. competitive brands. 
 
Consider this:
 
Asgrow developed the first soybean variety developed using molecular marker technology to select for pest resistance and was released by Monsanto in the late 1990's.   
 
Asgrow—developed the first lines advanced using marker technology to select for regions with higher yield were advanced in the fall of 2005.    Since this initial release, the number of varieties developed using markers to improve the efficiency of the breeding process has increased significantly.  
 
Asgrow utilizes a sophisticated seed chipper (valued at over a million dollars) developed “in house” that is capable of evaluating 100 million seed lines per year—ALWAYS looking for the next best thing.
 
So, when you hear the national campaign slogan of “Plant Assured—Plant Asgrow” , be confident that there is a combination of historic research with cutting edge breeding techniques and local performance data to insure you have made the right soybean brand choice.
 
 
2017 Soybean Market Development Plot Set--Here are the soybean and corn plot makeup for the 2017 growing season.  The lineup demonstrates the strength of breeding within the Asgrow and DeKalb brands while also considering the success of older varieties and how the newer genetics will compare to some old standards.  There will also be entries from competitors within these lineups.
 
2017 Soybean Market Development Plot Set
 
1. AG30X8 – Class of ’18
3.0 bu advantage in limited testing vs AG2935 (34 comparisons)
Description and positioning:
 
  • Cyst bean with outstanding eastern performance fit and strong emergence
  • Medium-tall gray plant with good standability
  • Resistant to SCN and good PRR package of stacked genes and excellent field tolerance
 
2. AG32X8 – Class of ’18
4.0 bu advantage in limited testing vs AG32X7 (34 comparisons)
Description and positioning:
 
  • High yield potential in a cyst bean
  • Strong PRR & BSR defense
  • Medium tall plant with excellent standability
 
3. AG33X8 – Class of ’18
5.5 bu advantage in limited testing vs AG32X7 (34 comparisons)
 
  • High yielding cyst bean adaptable to all row spacings and tillage systems
  • Excellent SDS, PRR, & BSR defense
  • Medium tall plant with good standability, emergence, and No Till adaptability
 
4. AG3432 – Class of ’12
Win Percentage for AG3432: 71% against leading competitive varieties +/- .4 RM (552 comparisons)
Avg. Yield Advantage for AG3432: 2.8 bu against leading competitive varieties +/- .4 RM (552 comparisons)
Description and positioning:
 
  • 3.4 RM bean with outstanding western performance and excellent emergence
  • Medium-tall gray plant with good standability
  • Resistant to SCN and good PRR package
 
5. AG34X7 – Class of ’17
Win Percentage for AG34X7: 68% against leading competitive varieties +/- .4 RM (38 comparisons)
Avg. Yield Advantage for AG34X7: 0.9 bu against leading competitive varieties +/- .4 RM (38 comparisons)
Description and positioning:
 
  • Widely adapted with exceptional yield potential
  • Medium tall gray plant with excellent emergence and standability
  • SCN resistance and good tolerance to BSR
  • Outstanding Phytophthora package with Rps1K and solid field resistance
 
6. AG36X6 – Class of ’16
Win Percentage for AG36X6: 88% against leading competitive varieties +/- .4 RM (59 comparisons)
Avg. Yield Advantage for AG36X6: 5.7 bu against leading competitive varieties +/- .4 RM (59 comparisons)
 
  • High yielding cyst bean with good canopy closure for wider row spacings
  • Strong Southern Stem Canker, SDS, PRR, & BSR defense
  • Medium height plant with excellent standability, emergence, and No Till adaptability
 
7. AG37X8 – Class of ’18
0.5 bu advantage in limited testing vs AG36X6 (34 comparisons)
 
  • High yielding cyst bean adaptable to all row spacings and tillage systems
  • Good SDS & PRR defense
  • Medium tall plant with excellent standability, emergence, and No Till adaptability
 
8. AG38X8 – Class of ’18
3.0 bu advantage in limited testing vs AG39X7 (44 comparisons)
Description and positioning:
 
  • Broadly adapted 3.8 RM product with excellent emergence and standability
  • Medium-tall gray plant with SCN resistance, Rps1c for PRR
 
9. AG39X7 – Class of ’17
Win Percentage for AG39X7: 68% against leading competitive varieties +/- .4 RM (41 comparisons)
Avg. Yield Advantage for AG39X7: 3.5 bu against leading competitive varieties +/- .4 RM (41 comparisons)
Description and positioning:
 
  • RR2Xtend/SR stacked bean with strong performance in all tested geographies
  • Medium tall tawny plant with excellent emergence and standability
  • SCN resistance and good tolerance to SDS & BSR
  • Outstanding Phytophthora package with Rps1C and solid field resistance
 
10. AG4034 – Class of ’14
Win Percentage for AG4034: 79% against leading competitive varieties +/- .4 RM (127 comparisons)
Avg. Yield Advantage for AG4034: 4.1 bu against leading competitive varieties +/- .4 RM (127 comparisons)
Description and positioning:
 
  • Early MG 4 high yielding SCN product with great no-till adaptability
  • Medium tall plant with excellent standability and emergence
  • PRR gene and excellent field tolerance to PRR
 
11. AG4135 – Class of ’15
Win Percentage for AG4135: 92% against leading competitive varieties +/- .4 RM (53 comparisons)
Avg. Yield Advantage for AG4135: 5.0 bu against leading competitive varieties +/- .4 RM (53 comparisons)
Description and positioning:
 
  • High yielding SCN product with great No-Till adaptability
  • Medium tall plant with excellent standability and emergence
  • PRR gene and field tolerance to PRR
 
12. AG41X8 – Class of ’18
5.6 bu advantage in limited testing vs AG4034 (49 comparisons)
Description and positioning:
 
  • Broadly adapted 4.1 RM product with excellent emergence and standability
  • Tall gray plant with SCN resistance, Rps1c for PRR
  • SR tolerance and similar SDS tolerance to AG4135
 
 
2017 Corn Market Development Plot Set
1. DKC60-69RIB – GENDGVT2Pro DroughtGard and available as a GENSS (DKC60-67RIB)
Win Percentage for DKC60-67/-69RIB: 60% against leading competitive hybrids +/- 4 RM (795 comparisons)
Avg. Yield Advantage for DKC60-67/-69RIB: 3.7 bu against leading competitive hybrids +/- 4 RM (795 comparisons)
Description and positioning:
 
  • High end yield potential maintained even under drought stress
  • Very good stalk and root strength very good greensnap tolerance
  • Strong foliar disease package and good Goss’ Wilt tolerance
 
2. DKC60-88RIB – GENDGVT2Pro and available as a GENSS (DKC60-87RIB)
Win Percentage for DKC60-87RIB: 63% against leading competitive hybrids +/- 4 RM (115 comparisons)
Avg. Yield Advantage for DKC60-87RIB: 9.2 bu against leading competitive hybrids +/- 4 RM (115 comparisons)
Description and positioning:
 
  • Excellent top end yield and plant health across all environments with good ear flex
  • Excellent stalk and root strength, high greensnap tolerance, and Food Grade grain quality
  • Good overall disease package and very good Goss’ Wilt tolerance
 
3. DKC62-52RIB – GENSS and also available as a GENVT2Pro (DKC62-53RIB)
5 bu advantage in limited Conv vs Conv testing vs DKC60-87
Description and positioning:
 
  • Excellent top end yield and plant health across all environments with good ear flex
  • Good stalk and root strength, high greensnap tolerance, and excellent drought tolerance
  • Good overall disease package and good Goss’ Wilt tolerance
 
4. DKC63-21RIB – GENSS
7 bu advantage in limited Conv vs Conv testing vs DKC63-60
Description and positioning:
 
  • Excellent top end yield in high yield environments with good ear flex
  • Good stalk and root strength, and good greensnap tolerance
  • Good overall disease package and very good Goss’ Wilt tolerance
 
5. DKC64-35RIB – GENVT2Pro and also available as a GENSS (DKC64-34RIB)
Win Percentage for DKC64-34RIB: 80% against leading competitive hybrids +/- 4 RM (204 comparisons)                         
Avg. Yield Advantage for DKC64-34RIB: 11.3 against leading competitive hybrids +/- 4 RM (204 comparisons)
Description and positioning:
 
  • Top end yield performance with low end stability in drought and heat and Food Grade grain quality
  • Very good stalk and root strength with very good greensnap tolerance
  • Strong agronomics, very good Goss’ Wilt tolerance, and superior Staygreen
 
6. DKC65-81RIB – GENDGVT2Pro DroughtGard and also available as a GENSS (DKC65-79RIB)
Win Percentage for DKC65-81RIB: 57% against leading competitive hybrids +/- 4 RM (465 comparisons)                         
Avg. Yield Advantage for DKC65-81RIB: 3.0 against leading competitive hybrids +/- 4 RM (465 comparisons)
Description and positioning:
 
  • Excellent drought tolerance with moderate ear flex & widely adapted high yield leader
  • Very good seedling growth, strong stalks and roots with excellent Staygreen
  • Excellent Goss’ Wilt defense and good silage potential
 
7. DKC65-94RIB – GENSS and also available as a GENVT2Pro (DKC65-95RIB)
2 bu advantage in limited Conv vs Conv testing vs DKC64-34
Description and positioning:
 
  • Excellent top end yield and plant health across all environments with good ear flex
  • Good stalk and root strength, high greensnap tolerance, and excellent drought tolerance
  • Good overall disease package and great test weight
 
8.  DKC66-75RIB – GENVT2Pro and also available as a GENSS (DKC66-74RIB)
Win Percentage for DKC66-74RIB: 71% against leading competitive hybrids +/- 4 RM (89 comparisons)                           
Avg. Yield Advantage for DKC66-74RIB: 7.5 against leading competitive hybrids +/- 4 RM (89 comparisons)
Description and positioning:
 
  • Excellent top end yield and plant health across all environments with moderate ear flex
  • Good stalk and root strength, high greensnap tolerance, and robust plant canopy
  • Good overall disease package and very good Goss’ Wilt tolerance
 
 
9. DKC68-26RIB – GENVT2Pro
Win Percentage for DKC68-26RIB: 70% against leading competitive hybrids +/- 4 RM (148 comparisons)                         
Avg. Yield Advantage for DKC68-26RIB: 7.4 against leading competitive hybrids +/- 4 RM (148 comparisons)
Description and positioning:                                                             
 
  • Strong performance in high end yield environments with girthy, flex ears
  • Very good stalk and root strength with good greensnap tolerance
  • Good overall disease package and good Goss’ Wilt tolerance
 
10. DKC70-27RIB – GENVT2Pro
Win Percentage for DKC70-27RIB: 91% against leading competitive hybrids +/- 4 RM (44 comparisons)                           
Avg. Yield Advantage for DKC70-27RIB: 20.9 against leading competitive hybrids +/- 4 RM (44 comparisons)
Description and positioning:
 
  • Excellent top end yield and plant health across all environments with good ear flex
  • Good stalk and root strength, high greensnap tolerance, and robust plant canopy
  • Good overall disease package and good Goss’ Wilt tolerance
 
WANT TO TRY THE LINEUPS??  If you have been intrigued by the Asgrow or DeKalb brands but never tried any on your own acres for whatever the reason, planting a plot with us is a way to evaluate the lineup under your management style…..We realize that everyone in the seed business has a number or variety that can work—will it work for you?  What is your return on your investment?  We are in constant pursuit of answers to these simple questions and renew the process each year with the new genetic classes. 
 
The process is quite simple----you pick the area where to plant the plot.  We are not concerned regarding fertility, straightness of rows, planting date, etc.  We invite the opportunity to work with you and on your land.  We want your evaluation in combination with all of the plot locations to determine a level of confidence of performance within this region.  We supply the seed and the manpower to get it planted in a timely fashion.  We will also be there throughout the season to soil sample, evaluate the good and the bad, and identify genetic capabilities in each growing environment.  At harvest, most of the data these days is gathered via yield monitor in combination with satellite imagery, which saves time and also provides a clearer view of the genetics x the environment involved.  At the end of the year, your data, in combination with about 36 others in SE Nebraska, develops a “grid result” of the genetic performance.  Think of this:  If the same hybrid or variety yielded the best in all 36 locations, under 36 different management styles, fertility, planting date, etc., what kind of confidence can we develop with that genetic package going forward?
 
 
John W. McNamara
Agronomist
Wiles Bros. Inc.
606 Wiles Road
Plattsmouth NE. 68048
(402) 298-8550--Office
(402) 499-3870--Cell
(402) 298-7174--Fax
 
 
 
 
 
 
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