Plant male fertility-associated protein, coding gene and application thereof

The invention discloses a plant male fertility-associated protein, a coding gene and application thereof. The invention discloses a plant yellow dwarf resistance-associated protein, a coding gene and application thereof. The protein provided by the invention is a protein (a) or (b) as follows: (a) the protein consisting of an amino acid sequence shown by a sequence 1 in a sequence table; and (b) the protein which is derived from the sequence 1 by performing substitution and/or deletion and/or addition on the amino acid sequence of the sequence 1 with one or more amino acid residues and is related to plant male fertility. The plant male fertility-associated protein influences the meiosis process of plants. Inhibition of the expression of the protein coding gene can cause plant male fertility (pollen fertility and spikelet fertility) to lower and influence seed setting rate, so that the transgenic plants with male meiosis variation and the transgenic plants in a plant male sterile line can be cultivated. Male fertile transgenic plants can be cultivated by introducing the coding gene of the protein into male sterile plants. The protein and the coding gene thereof can be applied to plant genetic improvement.