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Title: Sorghum Dw2 Encodes a Protein Kinase Regulator of Stem Internode Length

Abstract

Sorghum is an important C4 grass crop grown for grain, forage, sugar, and bioenergy production. While tall, late flowering landraces are commonly grown in Africa, short early flowering varieties were selected in US grain sorghum breeding programs to reduce lodging and to facilitate machine harvesting. Four loci have been identified that affect stem length (Dw1-Dw4). Subsequent research showed that Dw3 encodes an ABCB1 auxin transporter and Dw1 encodes a highly conserved protein involved in the regulation of cell proliferation. In this study, Dw2 was identified by fine-mapping and further confirmed by sequencing the Dw2 alleles in Dwarf Yellow Milo and Double Dwarf Yellow Milo, the progenitor genotypes where the recessive allele of dw2 originated. Furthermore, the Dw2 locus was determined to correspond to Sobic.006G067700, a gene that encodes a protein kinase that is homologous to KIPK, a member of the AGCVIII subgroup of the AGC protein kinase family in Arabidopsis.

Authors:
 [1];  [2]; ORCiD logo [1];  [1];  [1];  [2];  [2];  [3]
  1. Texas A & M Univ., College Station, TX (United States). Interdisciplinary Program in Genetics
  2. Texas A & M Univ., College Station, TX (United States).Dept. of Biochemistry and Biophysics
  3. Texas A & M Univ., College Station, TX (United States). Interdisciplinary Program in Genetics and Dept. of Biochemistry and Biophysics
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1466831
Grant/Contract Number:  
FC02-07ER64494
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Hilley, Josie L., Weers, Brock D., Truong, Sandra K., McCormick, Ryan F., Mattison, Ashley J., McKinley, Brian A., Morishige, Daryl T., and Mullet, John E. Sorghum Dw2 Encodes a Protein Kinase Regulator of Stem Internode Length. United States: N. p., 2017. Web. doi:10.1038/s41598-017-04609-5.
Hilley, Josie L., Weers, Brock D., Truong, Sandra K., McCormick, Ryan F., Mattison, Ashley J., McKinley, Brian A., Morishige, Daryl T., & Mullet, John E. Sorghum Dw2 Encodes a Protein Kinase Regulator of Stem Internode Length. United States. doi:10.1038/s41598-017-04609-5.
Hilley, Josie L., Weers, Brock D., Truong, Sandra K., McCormick, Ryan F., Mattison, Ashley J., McKinley, Brian A., Morishige, Daryl T., and Mullet, John E. Tue . "Sorghum Dw2 Encodes a Protein Kinase Regulator of Stem Internode Length". United States. doi:10.1038/s41598-017-04609-5. https://www.osti.gov/servlets/purl/1466831.
@article{osti_1466831,
title = {Sorghum Dw2 Encodes a Protein Kinase Regulator of Stem Internode Length},
author = {Hilley, Josie L. and Weers, Brock D. and Truong, Sandra K. and McCormick, Ryan F. and Mattison, Ashley J. and McKinley, Brian A. and Morishige, Daryl T. and Mullet, John E.},
abstractNote = {Sorghum is an important C4 grass crop grown for grain, forage, sugar, and bioenergy production. While tall, late flowering landraces are commonly grown in Africa, short early flowering varieties were selected in US grain sorghum breeding programs to reduce lodging and to facilitate machine harvesting. Four loci have been identified that affect stem length (Dw1-Dw4). Subsequent research showed that Dw3 encodes an ABCB1 auxin transporter and Dw1 encodes a highly conserved protein involved in the regulation of cell proliferation. In this study, Dw2 was identified by fine-mapping and further confirmed by sequencing the Dw2 alleles in Dwarf Yellow Milo and Double Dwarf Yellow Milo, the progenitor genotypes where the recessive allele of dw2 originated. Furthermore, the Dw2 locus was determined to correspond to Sobic.006G067700, a gene that encodes a protein kinase that is homologous to KIPK, a member of the AGCVIII subgroup of the AGC protein kinase family in Arabidopsis.},
doi = {10.1038/s41598-017-04609-5},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {7}
}

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Works referenced in this record:

Coincident light and clock regulation of pseudoresponse regulator protein 37 (PRR37) controls photoperiodic flowering in sorghum
journal, September 2011

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