Xiaodong Shi^1,*, Yue Qi¹, Liangzhu Lin¹, Jia Wang¹, Xiaobo Qin², Bei Niu^3,*

Phyton-International Journal of Experimental Botany, Vol.92, No.11, pp. 3149-3162, 2023, DOI:10.32604/phyton.2023.027324

Abstract Tartary buckwheat (Fagopyrum tataricum) is a dual-purpose medicinal and food crop grown for its high contents of functional compounds and abundant nutrients. Although studies have shown the differences of total flavonoid content in Tartary buckwheat at different ploidy levels, the composition of flavonoid and its regulatory mechanisms are largely unknown. In this study, the leaf metabolome and transcriptome of diploid and tetraploid accessions of Tartary buckwheat were analyzed to gain insight into the impact of polyploidization on comparative secondary metabolite composition and molecular regulatory mechanism. Based on a widely targeted metabolomics analysis, a total of 792 metabolites were identified, including… More >

Xiaodong Shi^1,*, Cong Wang¹, Wenjian Li¹, Hanlei Xiao¹, Yanjie Li¹, Bei Niu^2,*

Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 1973-1986, 2022, DOI:10.32604/phyton.2022.020065

Abstract Polyploid plants grow well, are stress tolerant, and are rich in nutrients and bioactive compounds. Thus, they are useful for improving crop quality and yield. In this study, we compared the seed characteristics and metabolite profiles of diploid and tetraploid tartary buckwheat, which was developed via an artificially induced chromosome doubling event. The length, width, area, and thousand-grain weight were greater for the tetraploid seeds than for the diploid seeds. However, the germination rate decreased for the tetraploid seeds. Additionally, there was a gap between the shell and kernel of the tetraploid seeds. Moreover, the water absorption rate was higher… More >

Longhua Zhou^1,2,#, Ting He^1,2,#, Jing Li^1,2,3, Guimei Guo^1,2, Yingbo Li^1,2, Hongwei Xu^1,2, Runhong Gao^1,2, Linli Huang^1,2, Yifei Wang^1,2, Ruiju Lu^1,2, Zhiwei Chen^1,2,*, Chenghong Liu^1,2,*

Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1419-1428, 2022, DOI:10.32604/phyton.2022.019912

Abstract Phytohormones play important roles in plant growth and development, and polyploids are thought to be an important method for plant breeding. However, the relationship between ploidy and phytohormone is still unclear. In this study, barley at three ploidy levels were produced by microspore culture. Therefore, we further analyzed the phytohormone content in the shoots and roots of the three kinds of barley materials to study the effect of ploidy on phytohormones accumulation and distribution. The results showed that Abscisic acid (ABA), gibberellin (GA), jasmonic acid (JA), auxin (IAA), salicylic acid (SA) and cytokinin (CTK) were successfully determined in shoots and… More >

Marina Tsvetova¹, Lev Elkonin^1,*, Yulia Italianskaya¹

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 389-401, 2019, DOI:10.32604/phyton.2019.07485

Abstract Apomictic seed development is a complex process including formation of unreduced embryo sac, parthenogenetic embryo development from the egg cell, and endosperm formation either autonomously, or due to fertilization of polar nuclei by the sperm (under pseudogamous form of apomixis). In the latter case, an obstacle to the normal endosperm development is disturbance of maternal (m) -to-paternal (p) genomic ratio 2m: 1p that occurs in the cases of pollination of unreduced embryo sac with haploid sperms. Usage of tetraploid pollinators can overcome this problem because in such crosses maternal-to-paternal genomic ratio is 4m: 2p that provides formation of kernels with… More >

Wang XL^1,2, Z Zhao¹, JE Quan¹

Phyton-International Journal of Experimental Botany, Vol.80, pp. 93-100, 2011, DOI:10.32604/phyton.2011.80.093

Abstract Robinia pseudoacacia (locust hereafter) is an ornamental tree with various uses. Both homologous tetraploid (tetraploid hereafter) and diploid cultivars are commercially available. The tetraploids have advantageous traits, but poor germinability, and cuttings are difficult to root. Since auxin applications can promote rooting, we evaluated the effects of dipping cuttings in various indole-3-butyric acid (IBA) concentrations for four hours on rooting parameters. IBA significantly affected all measured parameters of both tetraploid and diploids cuttings. Tetraploid cuttings produced no roots without IBA. The effects were strongest at 1000 and 800 mg/L IBA for tetraploids and diploids, respectively. Values for tetraploids and diploids… More >