18  / SEEDWORLD.COM  OCTOBER 2026
Jiao says the objective is 
to help breeders better match 
genetics to specific end uses.
“My research goal is to 
identify the different genes or 
the different combinations of 
this gene to meet the different 
market needs,” she says.
She offered examples that 
illustrate how one crop can 
serve multiple purposes.
“For example, for the 
animal feeding, to feed the 
cows, we would prefer large 
seeds, and feed the birds, we 
would prefer small seeds,” 
Jiao says. “The low protein 
digestibility and starch digest­
ibility can be a problem for 
animal feeding, but for human 
food, on some aspect, the low 
protein and starch digestibility 
is a preferred feature.”
Understanding those dif­
ferences requires a deeper 
look inside the grain itself.
Looking Beyond 
Traditional Traits
Jiao described metabolomics 
as an important bridge 
between genetics and final 
crop characteristics.
“I consider the metabo­
lome is the link between the 
genotype and the end trait,” 
she says.
Traditional breeding may 
identify a visible trait such as 
grain color, but Jiao argues 
researchers can gain a much 
richer understanding by 
studying the compounds 
responsible for creating those 
characteristics.
Her team profiled hun­
dreds of sorghum accessions 
from the Sorghum Association 
Panel (SAP), a collection 
of genetically diverse lines 
researchers assembled to 
represent sorghum's broad 
genetic diversity, and meas­
Connecting Grain 
Composition to Breeding 
Decisions
Jiao says the challenge now 
is determining how breeders 
can use this information.
Her team began connect­
ing specific compounds to vis­
ible traits such as grain color 
and more complex traits such 
as oil content.
Using machine learning, 
researchers identified com­
pounds associated with grain 
color and then traced those 
compounds back to genetic 
markers. They are applying 
the same strategy to total oil 
content.
Researchers identified 12 
lipid-associated markers and 
are testing whether stacking 
favorable alleles can improve 
grain oil levels.
“What we want to do is 
have an allele stacking strat­
egy to improve the sorghum 
total oil content,” Jiao says.
The project remains in 
development, but it illustrates 
how breeders may eventually 
add another layer of infor­
mation to existing selection 
strategies.
Extending the 
Conversation to Human 
Health
Jiao moved from breeding 
toward consumption. Working 
with nutrition researchers, her 
team is investigating whether 
compounds naturally present 
in sorghum may help address 
inflammation associated with 
metabolic disease.
“The motivation of this 
work is to say sorghum is 
beneficial to address inflam­
mation because inflammation 
is one of the major causes of 
the obesity,” Jiao says.
Researchers selected six 
ured thousands of com­
pounds within those lines. 
Then, they performed metab­
olite genome-wide associa­
tion studies to connect those 
compounds back to genetic 
variation.
The result is a growing 
database that researchers can 
use to investigate relation­
ships among grain composi­
tion, genetics and potentially 
valuable traits. Their work 
also highlights just how much 
diversity already exists within 
sorghum.
The researchers identified 
substantial variation across 
amino acids, carbohydrates, 
vitamins and polyphenols — 
plant compounds often asso­
ciated with antioxidant activity 
and human health.
“Polyphenols is a class of 
bioactive compounds related 
to the antioxidant,” Jiao says. 
“It is considered to be very 
beneficial for human health.”
sorghum lines with distinct 
grain colors and metabolite 
profiles and tested whole-
grain extracts on human cells. 
They intentionally evaluated 
the whole grain rather than 
isolated compounds.
“If you want to use sor­
ghum as food, we eat the 
whole grain, not a single com­
pound,” Jiao says.
Early results suggest cer­
tain fats naturally present in 
sorghum may play an impor­
tant role in reducing inflam­
mation. Researchers are still in 
the early stages, but the work 
highlights a broader effort 
to understand how breed­
ing could shape crop per­
formance and the nutritional 
characteristics of the final 
product.
Building Resources for the 
Broader Community
Jiao's work fits within a 
larger theme that surfaced 
throughout the grain quality 
session at NAPB. Researchers 
discussed how breeding 
programs may increasingly 
incorporate nutritional quality, 
consumer preferences and 
end-user requirements along­
side traditional agronomic 
priorities.
Yield and stress tolerance 
remain foundational objec­
tives. But researchers now 
have tools capable of measur­
ing thousands of compounds 
inside a seed and connecting 
those measurements back to 
genetics.
Those capabilities could 
eventually give breeders a 
more complete picture of 
value.
For Jiao, the work ulti­
mately comes back to under­
standing diversity and making 
it accessible to others. SW
Yinping Jiao, assistant 
professor at Texas Tech 
University, uses genomics, 
metabolomics, quantitative 
genetics and machine learning 
to investigate the genetics 
behind sorghum grain quality 
and nutritional traits. 
PHOTO: TEXAS TECH UNIVERSITY

View this content as a flipbook by clicking here.