Gene Details:

Functional Descriptions:

  • Down-regulation of the sucrose transporters HvSUT1 and HvSUT2 affects sucrose homeostasis along its delivery path in barley grains.
  • Expression of HvSUT1 and HvSUT2 overlap temporally and spatially, suggesting concerted functions to regulate sucrose homeostasis. Using HvSUT2-RNAi plants, we found that grains were also deficient in HvSUT1 expression and seemingly sucrose-limited during mid-to-late grain filling.
  • It was found that RNAi-mediated repression of HvSUT2 also resulted in down-regulation of HvSUT1 and led to accumulation of sucrose along the sucrose delivery route in the nucellar projection, the endosperm transfer cells, and the starchy endosperm, although grains become apparently sucrose-limited.
  • The results suggest that both HvSUT2 and HvSUT1 control sucrose homeostasis during grain filling. Their deficiency affects maturation and certain biosynthetic pathways, and initiates sugar starvation-induced salvage of resources.

Literature:

Gene Resources:

Orthologs:

Sequences:

cDNA Sequence
  • >HORVU.MOREX.r3.5HG0419590.1
    ATGCCGCCGCGCCGGCCCAACACCGGCGGGGGCGGGGGCACGTCGTCGTCGGCGGCGCCGGCGCCGCGCAAGGTCCCTCTCCGGTCGCTGCTCCGGGCGGCGTCGGTGGCGTGCGGGGTGCAGTTCGGGTGGGCGCTGCAGCTGTCCCTGCTGACCCCGTACGTCCAGGAGCTGGGCATCCCGCACGCCTTCGCCAGCCTGGTGTGGCTGTGCGGCCCGCTCTCCGGGCTCCTGGTGCAGCCCCTGGTGGGCCACCTCTCGGACCGCATCGCGCCGGCCAACTCCCCGCTCGGCCGCCGCCGGCCCTTCATCGCCGCCGGGGCGGCCTCCATCGCCTTCGCCGTGCTCACCGTCGGCTTCTCCGCCGACCTCGGCCGCCTCTTCGGGGACAACGTGGTGCCCGGCTCCACACGCTTCGGCGCCATCATCGTCTACCTCGTCGGCTTCTGGCTGCTCGACGTCGGCAACAACGCCACCCAGGGCCCATGCCGCGCCTTCCTCGCCGACCTCACCGAGAATGACCCGAGGAGGACCCGGATCGCCAATGCCTACTTCTCACTCTTCATGGCCCTGGGGAACATACTCGGGTACGCCACCGGGGCGTACAATGGCTGGTACAAGATATTCCCGTTCACTATCACTGGGTCCTGTGGCGTCAGCTGCGCCAACCTCAAGTCTGCGTTCCTGCTTGATATCATCATCCTGGCGATCACGACGTACATTAGCGTGGCGACGGTGCAGGACAATCCTACATTTGGAAGTGACGAGGCGGCGCCTCCAAGCAGCCACGAAGAGGAAGCTTTCCTCTTTGAGCTATTCGGGTCGTTCAAATACTTCACGATGCCTGTTTGGATGGTCTTGATCGTCACTTCTCTTACTTGGGTCGGGTGGTTCCCTTTTATCCTCTTTGACACCGACTGGATGGGCCGAGAGATCTACCGGGGAAGCCCAGAGATCGTCGCCGACACCCAAAAGTATCATGACGGTGTGAGAATGGGCTCTTTTGGTCTCATGCTCAACTCGGTCGTTCTCGGGATCACATCTATTGGAATGGAGAAGTTGTGTAGGAAGTGGGGAGCTGGACTTGTATGGGGTGTCTCCAATATCATCATGGCTCTGTGCTTCGTGGCGATGCTCATTATAACATACGTGGCGCAGAACCTGGATTATGGACCCAGCGGAGCACCTCCAACCGGAATTGTCGCCGCTTCCCTCATTGTTTTCACAATCTTAGGAGCACCTCTGTCGATCACGTACAGTATACCGTATGCGATGGCTGCAAGTCGTGTTGAAAATCTTGGGCTAGGCCAAGGTCTAGCAATGGGCATTCTTAATTTATCTATTGTCATACCACAGATCATCGTGTCGCTGGGCAGCGGGCCGTGGGACCAGCTCTTCGGCGGAGGGAACGCGCCGTCCTTCTGGGTGGCTGCCGCGGCCTCATTCGTGGGCGGGCTGGTAGCCATCCTGGGGCTCCCGCGGGCCCGGCTCGGGCCGAAGAAGAAAACCACCCAACGATGA
CDS Sequence
  • >HORVU.MOREX.r3.5HG0419590.1
    ATGCCGCCGCGCCGGCCCAACACCGGCGGGGGCGGGGGCACGTCGTCGTCGGCGGCGCCGGCGCCGCGCAAGGTCCCTCTCCGGTCGCTGCTCCGGGCGGCGTCGGTGGCGTGCGGGGTGCAGTTCGGGTGGGCGCTGCAGCTGTCCCTGCTGACCCCGTACGTCCAGGAGCTGGGCATCCCGCACGCCTTCGCCAGCCTGGTGTGGCTGTGCGGCCCGCTCTCCGGGCTCCTGGTGCAGCCCCTGGTGGGCCACCTCTCGGACCGCATCGCGCCGGCCAACTCCCCGCTCGGCCGCCGCCGGCCCTTCATCGCCGCCGGGGCGGCCTCCATCGCCTTCGCCGTGCTCACCGTCGGCTTCTCCGCCGACCTCGGCCGCCTCTTCGGGGACAACGTGGTGCCCGGCTCCACACGCTTCGGCGCCATCATCGTCTACCTCGTCGGCTTCTGGCTGCTCGACGTCGGCAACAACGCCACCCAGGGCCCATGCCGCGCCTTCCTCGCCGACCTCACCGAGAATGACCCGAGGAGGACCCGGATCGCCAATGCCTACTTCTCACTCTTCATGGCCCTGGGGAACATACTCGGGTACGCCACCGGGGCGTACAATGGCTGGTACAAGATATTCCCGTTCACTATCACTGGGTCCTGTGGCGTCAGCTGCGCCAACCTCAAGTCTGCGTTCCTGCTTGATATCATCATCCTGGCGATCACGACGTACATTAGCGTGGCGACGGTGCAGGACAATCCTACATTTGGAAGTGACGAGGCGGCGCCTCCAAGCAGCCACGAAGAGGAAGCTTTCCTCTTTGAGCTATTCGGGTCGTTCAAATACTTCACGATGCCTGTTTGGATGGTCTTGATCGTCACTTCTCTTACTTGGGTCGGGTGGTTCCCTTTTATCCTCTTTGACACCGACTGGATGGGCCGAGAGATCTACCGGGGAAGCCCAGAGATCGTCGCCGACACCCAAAAGTATCATGACGGTGTGAGAATGGGCTCTTTTGGTCTCATGCTCAACTCGGTCGTTCTCGGGATCACATCTATTGGAATGGAGAAGTTGTGTAGGAAGTGGGGAGCTGGACTTGTATGGGGTGTCTCCAATATCATCATGGCTCTGTGCTTCGTGGCGATGCTCATTATAACATACGTGGCGCAGAACCTGGATTATGGACCCAGCGGAGCACCTCCAACCGGAATTGTCGCCGCTTCCCTCATTGTTTTCACAATCTTAGGAGCACCTCTGTCGATCACGTACAGTATACCGTATGCGATGGCTGCAAGTCGTGTTGAAAATCTTGGGCTAGGCCAAGGTCTAGCAATGGGCATTCTTAATTTATCTATTGTCATACCACAGATCATCGTGTCGCTGGGCAGCGGGCCGTGGGACCAGCTCTTCGGCGGAGGGAACGCGCCGTCCTTCTGGGTGGCTGCCGCGGCCTCATTCGTGGGCGGGCTGGTAGCCATCCTGGGGCTCCCGCGGGCCCGGCTCGGGCCGAAGAAGAAAACCACCCAACGATGA
Protein Sequence
  • >HORVU.MOREX.r3.5HG0419590.1
    MPPRRPNTGGGGGTSSSAAPAPRKVPLRSLLRAASVACGVQFGWALQLSLLTPYVQELGIPHAFASLVWLCGPLSGLLVQPLVGHLSDRIAPANSPLGRRRPFIAAGAASIAFAVLTVGFSADLGRLFGDNVVPGSTRFGAIIVYLVGFWLLDVGNNATQGPCRAFLADLTENDPRRTRIANAYFSLFMALGNILGYATGAYNGWYKIFPFTITGSCGVSCANLKSAFLLDIIILAITTYISVATVQDNPTFGSDEAAPPSSHEEEAFLFELFGSFKYFTMPVWMVLIVTSLTWVGWFPFILFDTDWMGREIYRGSPEIVADTQKYHDGVRMGSFGLMLNSVVLGITSIGMEKLCRKWGAGLVWGVSNIIMALCFVAMLIITYVAQNLDYGPSGAPPTGIVAASLIVFTILGAPLSITYSIPYAMAASRVENLGLGQGLAMGILNLSIVIPQIIVSLGSGPWDQLFGGGNAPSFWVAAAASFVGGLVAILGLPRARLGPKKKTTQR