Title: King and queen in the era of plant genomics
Speaker: Prof. Yunbi Xu, Chinese Academy of Agricultural Sciences
Day/Date: Monday/May 21st, 2018
Host PI: Prof. Heng Zhang
Venue: PSC Auditorium
Advances in sequencing and chip technologies have contributed to dramatic cost reduction and throughput increase in plant genotyping, making phenotyping a king in the era of plant genomics. High-throughput and precision phenotyping largely depends on the characterization, management and control of the environments where plants grow and phenotyping is performed. On the other hand, global climate change imposes increasing impacts on our environments and crop production. Taking together, environments around and inside the plants play a key role as a queen now behind the king determining how phenotyping would reshape plant genomics. To decipher environmental impacts on crop plants, the concept “envirotyping” is proposed as a third “typing” technology, complementing with genotyping and phenotyping.
Envirotyping can be performed by collecting environmental factors through weather and climate information systems, multiple environmental trials, geographic and soil information survey, plant canopy monitoring and measurement, agronomy and crop management, and evaluation of companion organisms such as weeds, insects and pathogens. Driven by information management and decision support tools, envirotyping has not only great impacts on plant genomics but also a wide range of applications in plant science, through environmental characterization, genotype-by-environment interaction (GEI) analysis, phenotype prediction, near iso-environment construction, agronomic genomics, precision agriculture and breeding, and development of a four-dimensional profile of crop science involving genotype (G), phenotype (P), envirotype (E) and time (T) (developmental stage). Envirotyping contributes to crop modeling and phenotype prediction through its functional components, including GEI, genes responsive to environmental signals, biotic and abiotic stresses, and integrative phenotyping.
In the future, envirotyping needs to zoom into specific experimental plots or even individual plants, along with the development of high-throughput and precision envirotyping platforms, compared with genotyping and phenotyping technologies. With deciphered environmental impacts, genotypic, phenotypic and envirotypic information can be integrated to establish a high-efficient precision breeding and sustainable crop production system.
The seminar will be delivered in Chinese