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    Identification and Genetic Analysis of a Novel Allelic Variation of Brittle-1 with Endosperm Mutant in Maize

    Sen Wang1, Fei Zheng1, Meijing Zhang1, Jun Tu2, Yanping Chen1,3, Jianhua Yuan1,3, Qingchang Meng1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 861-871, 2020, DOI:10.32604/phyton.2020.011762

    Abstract Endosperm mutants are critical to the studies on both starch synthesis and metabolism and genetic improvement of starch quality in maize. In the present study, a novel maize endosperm mutant A0178 of natural variation was used as the experimental material and identified and then characterized. Through phenotypic identification, genetic analysis, main ingredients measurement and embryo rescue, development of genetic mapping population from A0178, the endosperm mutant gene was located. The results showed that the mutant exhibited extremely low germination ability as attributed to the inhibited embryo development, and amounts of sugars were accumulated in the mutant seeds and more sugars… More >

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