China Agricultural University

Weibin Song

Jinsheng Lai

Haiming Zhao

Yang Cui

Yingying Wang

Jihong Zhang

Yingsi Zhou

Yingnan Li

Xiangbo Zhang

Menglu Lyu

Provided are a Cas effector protein, a fusion protein containing said protein, and a nucleic acid molecule coding same. Also provided are a complex and a composition for nucleic acid editing, for example, a complex and a composition for gene or genome editing, containing the Cas effector protein or the fusion protein, or the nucleic acid molecule encoding same. Also provided is a method for nucleic acid editing, for example, a method for gene or genome editing, using the Cas effector protein or the fusion protein.

CRISPR/Cas12J enzyme and system

Provided area male sterility maintainer line plant, a method for producing the male sterility maintainer line plant, and use of said plant for propagating a male sterility line plant and the male sterility maintainer line plant. In addition, a nucleic acid molecule, a vector, and a host cell for producing the male sterility maintainer line plant are provided.

Male sterility maintainer line plant and use thereof

A method for maintaining a male sterile plant in a homozygous recessive state includes providing a first plant that includes homozygous recessive male sterility alleles, providing a second plant that includes homozygous recessive male sterility alleles the same as that in the first plant and a nucleotide construct in which the construct exists in a heterozygous state. The first nucleotide sequence of the nucleotide construct encodes a first protein that restores male fertility of the first plant after expression in the first plant. The second nucleotide sequence of the nucleotide construct allows for distinguishing the grains with or without the construct by observation through naked eyes or devices. The first nucleotide sequence and the second nucleotide sequence are tightly connected with each other and coexist in a plant. The method further includes fertilizing female gametes of the first plant with male gametes of the second plant.

Method for propagating sterile male plant line

A method for propagating a sterile male plant line includes: (a) providing a first plant that comprises a homozygous recessive male sterility allele; (b) providing a second plant comprising the homozygous recessive allele and a construct, where the construct exists in a heterozygous state and comprises i) a first nucleotide sequence that will restore the male fertility of the first plant after expression, and ii) a second nucleotide sequence that is able to affect the grain shape or the endosperm nutrient material composition in a heterozygous state, which allows for distinguishing the grains with or without said construct by observation through naked eyes or devices; the first nucleotide sequence and the second nucleotide sequence are tightly connected with each other and coexist in plants; and (c) fertilizing the female gametes of the first plant with the male gametes of the second plant.

Growing community of inventors

Beijing, China

Weibin Song