Beyond the Green Revolution: Improving crop productivity and sustainability by modulating plant growth-metabolic coordination

Combined genome‐wide association study and epistasis analysis reveal multifaceted genetic architectures of plant height in Asian cultivated rice

“…To date, of the reported semi-dwarf QTL/genes in rice (Ji et al, 2019;Ma et al, 2016;, only SD1 alleles have been successfully used in breeding practice without penalty on other major agronomic traits (Q. Liu et al, 2022). To prevent over-use of fixed SD1 alleles and the potential concomitant loss of genetic diversity, new PH-related QTL/genes suitable for breeding are required.…”

“…Appropriate PH has long been a major rice breeding target because semi‐dwarf cultivars are positively associated with lodging resistance, harvest index and yield (Xin et al, 2022). To date, of the reported semi‐dwarf QTL/genes in rice (Ji et al, 2019; Ma et al, 2016; S. Wang & Wang, 2022), only SD1 alleles have been successfully used in breeding practice without penalty on other major agronomic traits (Q. Liu et al, 2022). To prevent over‐use of fixed SD1 alleles and the potential concomitant loss of genetic diversity, new PH‐related QTL/genes suitable for breeding are required.…”

“…Appropriate PH enhances yield, harvest uniformity and index, lodging resistance and crowding tolerance in rice (F. Liu, Wang, et al, 2018;Q. Liu et al, 2022).…”

“…As a result, only SD1 has been successfully used in breeding programmes to generate semi-dwarf rice (Q. Liu et al, 2022;. However, excessive utilisation of this one sd1 allele may decrease genetic diversity and increase susceptibility to diseases and pests (Kadambari et al, 2018), so it is necessary to explore novel alleles or allelic combinations underlying PH variation to innovate and safeguard rice breeding.…”

“…Appropriate PH enhances yield, harvest uniformity and index, lodging resistance and crowding tolerance in rice (F. Liu, Wang, et al, 2018; Q. Liu et al, 2022). The discovery of the ‘Green Revolution’ gene SD1 from dwarfing landrace Dee‐geo‐woo‐gen and subsequent development of the ‘miracle’ variety IR8 significantly increased yield production and revolutionised rice breeding in the last century.…”