China is currently experiencing the dramatic process of rapid urbanization,and the issue of how to realize a healthy urbanization is such a hot topic that it attracts attention at various levels from the Central Gover...China is currently experiencing the dramatic process of rapid urbanization,and the issue of how to realize a healthy urbanization is such a hot topic that it attracts attention at various levels from the Central Government to the local governments,as well as in many fields from academic community to political circles.Around this issue,this article provides several related point of views from seven experts and scholars,in order to inspire the thoughts on the future of China’s urbanization.展开更多
Salinity is a major factor limiting rice yield in coastal areas of Asia. To facilitate breeding salt tolerant rice varieties, the wholeplant growth duration salt tolerance（ST） was genetically dissected by phenotypin...Salinity is a major factor limiting rice yield in coastal areas of Asia. To facilitate breeding salt tolerant rice varieties, the wholeplant growth duration salt tolerance（ST） was genetically dissected by phenotyping two sets of BC2F5 introgression lines（ILs） for four yield traits under severe natural salt stress and non-stress filed conditions using SSR markers and the methods of advanced backcross QTL（AB-QTL） analysis and selective introgression. Many QTLs affecting four yield traits under salt stress and nonstress conditions were identified, most（〉90%） of which were clustered in 13 genomic regions of the rice genome and involved in complex epistasis. Most QTLs affecting yield traits were differentially expressed under salt stress and non-stress conditions. Our results suggested that genetics complementarily provides an adequate explanation for the hidden genetic diversity for ST observed in both IL populations. Some promising Huanghuazhan（HHZ） ILs with favorable donor alleles at multiple QTLs and significantly improved yield traits under salt stress and non-stress conditions were identified, providing excellent materials and relevant genetic information for improving rice ST by marker-assisted selection（MAS） or genome selection.展开更多
文摘China is currently experiencing the dramatic process of rapid urbanization,and the issue of how to realize a healthy urbanization is such a hot topic that it attracts attention at various levels from the Central Government to the local governments,as well as in many fields from academic community to political circles.Around this issue,this article provides several related point of views from seven experts and scholars,in order to inspire the thoughts on the future of China’s urbanization.
基金funded by the National High-Tech R&D Program of China (2012AA101101)the 948 Project from the Ministry of Agriculture, China (2010-G2B)+1 种基金the International Cooperative Project from the Ministry of Science and Technology, China (S2012ZR0160)the Bill & Melinda Gates Foundation Project (OPP51587)
文摘Salinity is a major factor limiting rice yield in coastal areas of Asia. To facilitate breeding salt tolerant rice varieties, the wholeplant growth duration salt tolerance（ST） was genetically dissected by phenotyping two sets of BC2F5 introgression lines（ILs） for four yield traits under severe natural salt stress and non-stress filed conditions using SSR markers and the methods of advanced backcross QTL（AB-QTL） analysis and selective introgression. Many QTLs affecting four yield traits under salt stress and nonstress conditions were identified, most（〉90%） of which were clustered in 13 genomic regions of the rice genome and involved in complex epistasis. Most QTLs affecting yield traits were differentially expressed under salt stress and non-stress conditions. Our results suggested that genetics complementarily provides an adequate explanation for the hidden genetic diversity for ST observed in both IL populations. Some promising Huanghuazhan（HHZ） ILs with favorable donor alleles at multiple QTLs and significantly improved yield traits under salt stress and non-stress conditions were identified, providing excellent materials and relevant genetic information for improving rice ST by marker-assisted selection（MAS） or genome selection.
