Since the middle of 1980’s, wide compatibility(WC) rice lines have been screened by ricebreeders in China and applied in hybrid ricebreeding program. Several WC lines such asPecos, T984, Lunhui 422, and 02428 withide...Since the middle of 1980’s, wide compatibility(WC) rice lines have been screened by ricebreeders in China and applied in hybrid ricebreeding program. Several WC lines such asPecos, T984, Lunhui 422, and 02428 withideal agronomic characters were identified. Weincorporated the WC gene into restorer linesby crossing these japonica WC lines with ob-tained indica lines. Some WC restorer lineswith indica-japonica medium type were ob-tained and their application value in intersub-specific hybrid rice breeding were evaluated. 1. Effect of crossing methods on selectionefficiencies of WC restorer lines展开更多
Cereal aleurone cells are differentiated from triploid endosperm cells and exhibit distinct cytological,phys-iological,and biochemical characteristics that distinguish them from the starchy endosperm cells of ce-reals...Cereal aleurone cells are differentiated from triploid endosperm cells and exhibit distinct cytological,phys-iological,and biochemical characteristics that distinguish them from the starchy endosperm cells of ce-reals.Aleurone cells maintain viability throughout seed development,whereas starchy endosperm cells un-dergo programmed cell death during maturation.Despite variations in aleurone-related traits among cereal species,the aleurone layer plays a crucial role in regulating many aspects of seed development,including the accumulation of storage reserves,the acquisition of dormancy,and germination.Given that many nu-trients—such as lipids,dietary fibers,vitamins,and minerals like iron and zinc—are predominantly accumu-lated in the aleurone cells of cereal grains,this layer has attracted considerable attention aimed at improving the nutritional value of cereals.This review provides a comprehensive overview of the develop-mental,genetic,and molecular basis of aleurone cell differentiation and proliferation.It focuses on the improvement of aleurone-related traits informed by knowledge of the molecular networks governing aleu-rone development and presents a detailed discussion on the challenges and potential solutions associated with cereal improvement through the manipulation of aleurone-related traits.展开更多
文摘Since the middle of 1980’s, wide compatibility(WC) rice lines have been screened by ricebreeders in China and applied in hybrid ricebreeding program. Several WC lines such asPecos, T984, Lunhui 422, and 02428 withideal agronomic characters were identified. Weincorporated the WC gene into restorer linesby crossing these japonica WC lines with ob-tained indica lines. Some WC restorer lineswith indica-japonica medium type were ob-tained and their application value in intersub-specific hybrid rice breeding were evaluated. 1. Effect of crossing methods on selectionefficiencies of WC restorer lines
基金supported by grants from the Biological Breeding-National Science and Technology Major Project(2023ZD0406802)the National Natural Science Foundation of China(32170344)+1 种基金the Jiangsu Agricultural Science and Technology Innovation Fund(CX(23)3096)the project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD).
文摘Cereal aleurone cells are differentiated from triploid endosperm cells and exhibit distinct cytological,phys-iological,and biochemical characteristics that distinguish them from the starchy endosperm cells of ce-reals.Aleurone cells maintain viability throughout seed development,whereas starchy endosperm cells un-dergo programmed cell death during maturation.Despite variations in aleurone-related traits among cereal species,the aleurone layer plays a crucial role in regulating many aspects of seed development,including the accumulation of storage reserves,the acquisition of dormancy,and germination.Given that many nu-trients—such as lipids,dietary fibers,vitamins,and minerals like iron and zinc—are predominantly accumu-lated in the aleurone cells of cereal grains,this layer has attracted considerable attention aimed at improving the nutritional value of cereals.This review provides a comprehensive overview of the develop-mental,genetic,and molecular basis of aleurone cell differentiation and proliferation.It focuses on the improvement of aleurone-related traits informed by knowledge of the molecular networks governing aleu-rone development and presents a detailed discussion on the challenges and potential solutions associated with cereal improvement through the manipulation of aleurone-related traits.
