The expression pattern of Zm00001d031871 (br2) gene was investigated in the detected tissues of maize B73 inbred lines using qRT-PCR analysis. Ten tissues of root, leaf, stem, silk, endosperm, and embryo at different developmental stages were collected. We found that br2 exhibited relative higher expression … See more By screening the plant height phenotype from the maize EMS-induced mutant population in the field, we identified a dwarf mutant d129. After multiple generations of self … See more The MutMap method was adopted to identify the mutant locus of the d129 mutant according to the previous study (Lu et al. 2024). The … See more To explore the physiological mechanisms of the d129 mutant in regulating the development of plant height, cytological analysis was performed for the S-1 internodes due to the … See more To further verify whether the detected G-to-A substitution is responsible for the dwarf phenotype of the d129 mutant, one allelic mutant … See more WebMay 10, 2024 · We demonstrate this with one example, showing that Brachytic2 represses the Ubiquitin3 locus in the maternal lines; in hybrids, the paternal allele alleviates this repression, which in turn recovers the height of the plant and …
A novel maize dwarf mutant generated by - SpringerLink
WebOct 3, 2003 · Here, we describe a different dwarfing mechanism found in maize brachytic2 (br2) mutants characterized by compact lower stalk internodes. The height reduction in these plants results from the loss of a P-glycoprotein that modulates polar auxin transport in the maize stalk. WebDwarf brachytic2 (br2) mutants harbour lesions in the gene encoding an orthologue of Arabidopsis thaliana ABCB1 which functions in auxin efflux out of meristematic regions in … city wide towing springfield ohio
An EMS-induced allele of the brachytic2 gene can reduce plant height in
WebJan 12, 2024 · Brachytic2 and ZmPIN1a regulate internode elongation by mediating the polar auxin transport in maize [18,19]. The overexpression of ZmPIN1a resulted in reduced plant height, ear height, and increased maize yield under high-density cultivation conditions . In addition to the plant hormones GAs and IAAs, other phytohormones, such as BRs and … WebDec 27, 2024 · A maize brachytic2 (br2) mutant displays a shortened shoot and root with high auxin concentration in their apexes, where BR2 encodes an auxin transporter P-glycoprotein1 (PGP1). We employed... WebPlant homologs of human multiple drug resistance/P-glycoproteins (MDR/PGPs) have been implicated in auxin transport, as defects in MDR1 (AtPGP19) and AtPGP1 result in reductions of growth and auxin transport in Arabidopsis (atpgp1, atpgp19), maize (brachytic2) and sorghum (dwarf3). Here we examine the localization, activity, substrate ... city wide towing toledo ohio