AgriX Forum 168 Notice | Heterosis Analysis and Genome Breeding Methods of Maize
In the last AgriX Forum, Lin Rongcheng, a teacher from the Institute of Botany, Chinese Academy of Sciences, was invited to share the content of "Research on the Regulation Mechanism of Chlorophyll Synthesis and Chloroplast Protein Ubiquitination Degradation". The lecture was very wonderful. Welcome to watch the replay.
This is the 168th issue of AgriX Forum (October 19). Professor Xiao Yingjie from Huazhong Agricultural University was invited to share the contents of "Heterosis Analysis and Genome Breeding Methods of Maize". Welcome to this lecture!
Professor Xiao Yingjie, Huazhong Agricultural University
Arrangement of the 168th Lecture
Xiao Yingjie, doctor, professor of Huazhong Agricultural University, winner of National Science Fund for Distinguished Young Scholars. Genetic Analysis and Genomic Breeding of Long term Maize Complex Traits. In recent years, many key genes controlling plant type, flowering and grain dehydration have been cloned with yield, mechanized harvesting and other important breeding traits as the core and big data analysis as the driving force. Combining quantitative genetics and machine learning algorithm, the genetic mechanism of maize heterosis was analyzed, and goal oriented multi trait optimization TOP technology was developed to help genome design and breeding. Relevant research achievements have published 14 papers in authoritative journals of the industry such as Genome Biology, Molecular Biology and Evolution, and Molecular Plant, with a total of more than 1600 citations. Presided over 6 national key research and development sub projects of the National Natural Science Foundation of China.
Targeted sequencing is a method to isolate, enrich and sequence a group of target genes or genome regions. This method enables researchers to focus time, cost and data analysis on specific regions of interest (target regions, genes), and use less data to obtain higher sensitivity and accuracy, so as to achieve rapid screening of mutation sites. These target regions usually include exome (the protein coding part of the genome), specific genes of interest (customized content), and target regions in genes or mitochondrial DNA.
FBI seq (Foreground and Background Integrated genotyping by sequencing) is not sequencing by the US Federal Bureau of Investigation, but genotyping sequencing integrating foreground and background. As the name implies, this technology realizes the detection and selection of foreground genes and genetic background at the same time. The selection of foreground and background is two very important steps in molecular breeding. At present, breeders often need to carry out these two steps independently: first, screen foreground target sites, and then develop a large number of probes/bait/PCR primers to detect background genotypes. These time-consuming and costly preparations greatly delay the start of breeding projects.
Deeply cultivate the agricultural core, and work together for the future. In response to the call of the country to build a "China core" of seed industry, and to promote the joint construction of the "Northern Seed City", Phoenix Expo was officially upgraded to the "China Northern Seed Expo" on the basis of successfully holding three sessions of China Shandong International Vegetable Seed Expo, focusing on new varieties and new technologies such as field, vegetables, fruits and vegetables, horticulture, balcony agriculture, and combining cloud seed industry, cloud plant protection, cloud agricultural science platform, Build online and offline promotion and trading dual platforms for seed breeding. The 2022 Northern Species Expo will be linked with the 29th Shandong Double Trade Fair for Plant Protection, China Shandong International New Fertilizer Exhibition, and China (Shandong) New Agricultural Equipment Exhibition!