Developing vivipary-resistant maize varieties through the discovery of novel genes is crucial for agricultural production in China. In this study, the maize mutant vp2 exhibited a clear viviparous phenotype with stable inheritance, controlled by a single recessive gene.

2008年10月22日 · In maize vivipary, the precocious germination of the seed while still attached to the ear is the diagnostic phenotype of mutations impaired in the biosynthesis or the sensitivity of the embryo to...

Maize viviparous mutants have been demonstrated to have defects in ABA biosynthesis or ABA sensing, and multiple maize vivipary-related genes have been cloned. Both the vp1 and vp4 genes encode a plant-specific transcription factor involved in ABA signaling that can complement the Arabidopsis abi3 mutant allele [ 19 , 20 ].

2003年10月1日 · Select enzymes (PDS, phytoene desaturase; ZDS, zetacarotene desaturase; LCY, lycopene betacyclase) affecting progression through the pathway are shown next to maize mutants, vp2, vp5, w3, vp9, y9, that block progression through the pathway at indicated points marked by accumulation of intermediates noted. 1, 15‐Z‐phytoene; 2, 15‐Z ...

Developing vivipary-resistant maize varieties through the discovery of novel genes is crucial for agricultural production in China. In this study, the maize mutant vp2 exhibited a clear viviparous phenotype with stable inheritance, controlled by a

2015年1月19日 · Maize mutant viviparous -5 (vp5), deficient in ABA biosynthesis in seeds, is a useful material for studying ABA-mediated response in maize. Due to carotenoid deficiency, vp5 endosperm is white, compared to yellow Vp5 endosperm. However, the background difference at proteome level between vp5 and Vp5 seeds is unclear.

2020年2月1日 · This endeavor seeks generating a recombinant chimeric protein merging the projection domain (PD) of IBDV VP2 capsid with the fragment crystallizable (Fc) of avian IgY (FcIgY), in maize as a prospective poultry edible vaccine. The PD sequence was built on the basis of very virulent IBDV isolates circulating in Egypt.

HMGR specific activity and ABA levels were measured in the endosperm of the maize vivipary mutuants vp2, vp5, and vp7, which are defective in ABA biosynthesis, and vp1, which is defective in an ABA response element.

3 天之前 · Maize vivipary, the precocious germination of seeds on the ear, significantly impacts maize yield and quality. Developing vivipary-resistant maize varieties through the discovery of novel genes is crucial for agricultural production in China. In this study, the maize mutant vp2 exhibited a clear viviparous phenotype with stable inheritance, controlled by a …

2017年3月24日 · Preharvest sprouting reduces the maize quality and causes a significant yield loss in maize production. vp-wl2 is a Mutator (Mu)-induced viviparous mutant in maize, causing white or pale yellow kernels, dramatically reduced carotenoid and ABA content, and a high level of zeta-carotene accumulation.