Tang's lab for maize genetics and molecular breeding

This laboratory is a laboratory led by Professor Tang Jihua of the Agricultural College of Henan Agricultural University. There are 14 teachers in the laboratory, including 1 scholars in the Yangtze River, 4 professors, 5 associate professors and 5 lecturers. There are 12 doctoral students and 25 master students.

Research direction

Study on three line and two line seed production techniques of maize:

Male sterility is an important way to utilize the Heterosis of maize. The research group is devoted to the study of maize C cytoplasmic male sterility and ecological nuclear male sterile gene and restorer gene. The C cytoplasmic male sterility restorer gene Rf4, Rf5 and its suppressor gene Rf-I are cloned. The function of the male sterility is analyzed and the mitochondrial cytoplasmic male sterile gene at is at present. The mechanism of p6c and the mechanism of plastid nuclear interaction were analyzed in order to provide gene and germplasm resources for maize three line and two-line seed production.

Genetic mechanism of Heterosis in Maize Yield Related Traits and cloning of related genes

Heterosis is the theoretical basis of maize hybrid seed production, but the genetic basis of heterosis is not clear. Based on the Changsha 7-2 single fragment substitution line in the lx9801 background, the hybrid species (Zheng 58 *SSSL, Zheng 58 * Chang 7-2, Zhengdan 958) and Lu Dan 9002 (lx9801* Chang 7-2) were used to analyze Heterosis and clone heterosis related genes, using the Chang 7-2 donor and lx9801 background in the single segment substitution line. The influence of other genetic factors is excluded from heredity.

Cloning and functional analysis of maize kernel and spike related genes

The characters of ear length, ear diameter, number of rows of ear, grain number, grain size and grain filling are important components of maize yield. The research group has long devoted to cloning and function research of maize grain natural mutant gene, and has obtained ZmUrb2, ZmEHD1, ZmMHD4 and ZmTFCB genes affecting grain size. Cloned Zm? Isogenic.
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