TY - JOUR
T1 - High molecular weight glutenin gene diversity in Aegilops tauschii demonstrates unique origin of superior wheat quality
AU - Open Wild Wheat Consortium
AU - Delorean, Emily
AU - Gao, Liangliang
AU - Lopez, Jose Fausto Cervantes
AU - Mehrabi, Ali
AU - Bentley, Alison
AU - Sharon, Amir
AU - Keller, Beat
AU - Wulff, Brande
AU - Steffenson, Brian
AU - Steuernagel, Burkhard
AU - Sansaloni, Carolina Paola
AU - Liu, Deng Cai
AU - Lagudah, Evans
AU - Nasyrova, Firuza
AU - Brown-Guedira, Gina
AU - Sela, Hanan
AU - Dvorak, Jan
AU - Poland, Jesse
AU - Mayer, Klaus
AU - Krasileva, Ksenia
AU - Gaurav, Kumar
AU - Mao, Long
AU - Caccamo, Mario
AU - Mascher, Martin
AU - Luo, Mingcheng
AU - Chhuneja, Parveen
AU - Davey, Rob
AU - Faris, Justin
AU - Xu, Steven
AU - Nicholson, Paul
AU - Chayut, Noam
AU - Ambrose, Mike
AU - Rawat, Nidhi
AU - Tiwari, Vijay K.
AU - Ibba, Maria Itria
AU - Poland, Jesse
N1 - Funding Information:
E.D. was supported through Monsanto’s Beachell-Borlaug International Scholars Program. This material is based upon work supported by the National Science Foundation under Award No. 1822162 “Phase II IUCRC at Kansas State University Center for Wheat Genetic Resources WGRC” and Award No. 1339389 “GPF-PG: Genome Structure and Diversity of Wheat and Its Wild Relatives”. B.B.H.W. was supported by the UK Biotechnology and Biological Sciences Research Council Designing Future Wheat Institute Strategic Programme BB/P016855/1. Any opinions, findings, and conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Central to the diversity of wheat products was the origin of hexaploid bread wheat, which added the D-genome of Aegilops tauschii to tetraploid wheat giving rise to superior dough properties in leavened breads. The polyploidization, however, imposed a genetic bottleneck, with only limited diversity introduced in the wheat D-subgenome. To understand genetic variants for quality, we sequenced 273 accessions spanning the known diversity of Ae. tauschii. We discovered 45 haplotypes in Glu-D1, a major determinant of quality, relative to the two predominant haplotypes in wheat. The wheat allele 2 + 12 was found in Ae. tauschii Lineage 2, the donor of the wheat D-subgenome. Conversely, the superior quality wheat allele 5 + 10 allele originated in Lineage 3, a recently characterized lineage of Ae. tauschii, showing a unique origin of this important allele. These two wheat alleles were also quite similar relative to the total observed molecular diversity in Ae. tauschii at Glu-D1. Ae. tauschii is thus a reservoir for unique Glu-D1 alleles and provides the genomic resource to begin utilizing new alleles for end-use quality improvement in wheat breeding programs.
AB - Central to the diversity of wheat products was the origin of hexaploid bread wheat, which added the D-genome of Aegilops tauschii to tetraploid wheat giving rise to superior dough properties in leavened breads. The polyploidization, however, imposed a genetic bottleneck, with only limited diversity introduced in the wheat D-subgenome. To understand genetic variants for quality, we sequenced 273 accessions spanning the known diversity of Ae. tauschii. We discovered 45 haplotypes in Glu-D1, a major determinant of quality, relative to the two predominant haplotypes in wheat. The wheat allele 2 + 12 was found in Ae. tauschii Lineage 2, the donor of the wheat D-subgenome. Conversely, the superior quality wheat allele 5 + 10 allele originated in Lineage 3, a recently characterized lineage of Ae. tauschii, showing a unique origin of this important allele. These two wheat alleles were also quite similar relative to the total observed molecular diversity in Ae. tauschii at Glu-D1. Ae. tauschii is thus a reservoir for unique Glu-D1 alleles and provides the genomic resource to begin utilizing new alleles for end-use quality improvement in wheat breeding programs.
UR - http://www.scopus.com/inward/record.url?scp=85118392673&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85118392673&partnerID=8YFLogxK
U2 - 10.1038/s42003-021-02563-7
DO - 10.1038/s42003-021-02563-7
M3 - Article
C2 - 34725451
AN - SCOPUS:85118392673
SN - 2399-3642
VL - 4
JO - Communications biology
JF - Communications biology
IS - 1
M1 - 1242
ER -
