Seed filling in domesticated maize and rice depends on SWEET-mediated hexose transport

  title={Seed filling in domesticated maize and rice depends on SWEET-mediated hexose transport},
  author={Davide Sosso and Dangping Luo and Q Li and Joelle Sasse and Jinliang Yang and Ghislaine Gendrot and Masaharu Suzuki and Karen Elaine Koch and Donald R McCarty and Prem S. Chourey and Peter M Rogowsky and Jeffrey Ross-Ibarra and Bing Yang and Wolf Bernd Frommer},
  journal={Nature Genetics},
Carbohydrate import into seeds directly determines seed size and must have been increased through domestication. However, evidence of the domestication of sugar translocation and the identities of seed-filling transporters have been elusive. Maize ZmSWEET4c, as opposed to its sucrose-transporting homologs, mediates transepithelial hexose transport across the basal endosperm transfer layer (BETL), the entry point of nutrients into the seed, and shows signatures indicative of selection during… CONTINUE READING
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