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Effects of TaMTL -Edited Mutations on Grain Phenotype and Storage Component Composition in Wheat

Author

Listed:
  • Huali Tang

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
    College of Agronomy, China Agricultural University, Beijing 100193, China)

  • Shuangxi Zhang

    (Crop Research Institute, Ningxia Academy of Agri-Forestry Sciences, Yinchuan 750105, China)

  • Mei Yu

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Ke Wang

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Yang Yu

    (School of Agriculture, Yangtze University, Jingzhou 434000, China)

  • Yuliang Qiu

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Yanan Chang

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Zhishan Lin

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Lipu Du

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

  • Daolin Fu

    (State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, China)

  • Zichao Li

    (College of Agronomy, China Agricultural University, Beijing 100193, China)

  • Xingguo Ye

    (Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China)

Abstract

Wheat nutrition and processing-quality are primarily based on the endosperm ingredients. However, the effect of embryos on grain traits and components remains unclear. In this study, we found that in the cross-pollinated and self-pollinated progenies of the four wheat mtl mutants ( mtl - A , mtl - AD , mtl - BD , and mtl - ABD ) the haploid induction rates were 0–15.6% and 0–14.1%, and the embryo abortion rates were 0–27.4% and 0–24.1%, respectively, in which mtl-A had no effect on haploid induction and embryo development. The embryoless grains (ELG) were comparable to the normal grains (NG) from mtl - AD , mtl - BD , and mtl - ABD in grain length, grain width and thousand-kernel weight, but the grain traits were significantly less than those in NG from mutant mtl-A . During grain filling period, mtl-ABD had similar ELG ratio and amount of starch granule (SG) and protein body (PB) in ELG and NG. At maturity stage, the morphological features of A-type and B-type SG in ELG were similar to those in NG in mtl mutants; however, amylose, gliadin, and glutenin contents were higher in ELG, and total starch, albumin and globulin contents were higher in NG. Our results clarified the effect of the wheat mtl mutants on haploid induction and grain traits and nutrition composition in this crop, and provided new clues for studying the development of embryo and endosperm and their interaction in plants.

Suggested Citation

  • Huali Tang & Shuangxi Zhang & Mei Yu & Ke Wang & Yang Yu & Yuliang Qiu & Yanan Chang & Zhishan Lin & Lipu Du & Daolin Fu & Zichao Li & Xingguo Ye, 2022. "Effects of TaMTL -Edited Mutations on Grain Phenotype and Storage Component Composition in Wheat," Agriculture, MDPI, vol. 12(5), pages 1-16, April.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:5:p:587-:d:800167
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    References listed on IDEAS

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    1. Nir Ohad, 2007. "Parental conflict overcome," Nature, Nature, vol. 447(7142), pages 275-276, May.
    2. Timothy Kelliher & Dakota Starr & Lee Richbourg & Satya Chintamanani & Brent Delzer & Michael L. Nuccio & Julie Green & Zhongying Chen & Jamie McCuiston & Wenling Wang & Tara Liebler & Paul Bullock & , 2017. "MATRILINEAL, a sperm-specific phospholipase, triggers maize haploid induction," Nature, Nature, vol. 542(7639), pages 105-109, February.
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