Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P06889 (Mol)
 630,302 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This project aimed at breeding new seedless grape cultivars by embryo rescue through three hybridization methods: 1) using cross-breeding between seedless Vitis vinifera cultivars and wild Chinese Vitis spp; 2) crossing with two seedless cultivars, and 3) hybridization between grapes of different ploidy. Genotype, sampling times, and media were confirmed to play important roles in this system. Among the different genotypes, the productions of hybrid plants were significantly different, ranging from 23.0% (Ruby Seedless x Black Olympia) to only 1.1% (Pink Seedless x Beichun), except for the combinations from which no surviving seedlings were obtained. We got the best sampling times, in days after flowering (DAF), from the following different combinations: 'Flame Seedless x Beichun' (39 DAF); 'Blush Seedless x Shuangyou' (54 DAF); 'Pink Seedless x Beichun' (54 DAF); 'DA7 x Shuangyou' (44 DAF); 'Blush Seedless x Thompson Seedless (54 DAF)'; 'Pink Seedless x Flame Seedless' (54 DAF); 'DA7 x Blush Seedless' (44 DAF); 'Ruby Seedless x Black Olympia' (63 DAF); 'DA7 x Jingyou' (44 DAF); 'Flame Seedless x Fujiminori' (39 DAF), and 'Big Black x Kyoho' (72 DAF). The highest rates of embryo formation (13.2%) and plant development (90.1%) were found when ovules were cultured in MM4 with 500 mg/L mashed banana. Conversely, they were reduced by addition of plant growth regulators. Seven new hybrids were successfully obtained. As a result of early nuclear-free character and ploidy level identification, 11 seedless grape lines, and 3 triploid and 2 haploid grape lines were obtained.
Genet Mol Res 2013 Mar 26
PMID:Breeding new seedless grape by means of in vitro embryo rescue. 2361 94

Rosa chinensis is one of the most popular flower plants worldwide. The recurrent flowering trait greatly enhances the ornamental value of roses, and is the result of the constant formation of new flower buds. Flower bud differentiation has always been a major topic of interest among researchers. The APETALA1 (AP1) MADS-box (Mcm1, Agamous, Deficiens and SRF) transcription factor-encoding gene is important for the formation of the floral meristem and floral organs. However, research on the rose AP1 gene has been limited. Thus, we isolated AP1 from Rosa chinensis 'Old Blush'. An expression analysis revealed that RcAP1 was not expressed before the floral primordia formation stage in flower buds. The overexpression of RcAP1 in Arabidopsis thaliana resulted in an early-flowering phenotype. Additionally, the virus-induced down-regulation of RcAP1 expression delayed flowering in 'Old Blush'. Moreover, RcAP1 was specifically expressed in the sepals of floral organs, while its expression was down-regulated in abnormal sepals and leaf-like organs. These observations suggest that RcAP1 may contribute to rose bud differentiation as well as floral organ morphogenesis, especially the sepals. These results may help for further characterization of the regulatory mechanisms of the recurrent flowering trait in rose.
Int J Mol Sci 2019 Jul 20
PMID:RcAP1, a Homolog of APETALA1, is Associated with Flower Bud Differentiation and Floral Organ Morphogenesis in Rosa chinensis. 3133 Aug 28