The StMADS11 subfamily genes play a crucial role in regulating flowering time, flower development, and bud dormancy in plants. These genes exhibit functional differences between annual and perennial woody plants. In hickory (Carya cathayensis Sarg.
View Article and Find Full Text PDFPhosphatidyl ethanolamine-binding protein (PEBP) plays important roles in plant growth and development. However, few studies have investigated the PEBP gene family in pecan (Carya illinoinensis), particularly the function of the PEBP-like subfamily. In this study, we identified 12 PEBP genes from the pecan genome and classified them into four subfamilies: MFT-like, FT-like, TFL1-like and PEBP-like.
View Article and Find Full Text PDFThe central dogma of genetics, which outlines the flow of genetic information from DNA to RNA to protein, has long been the guiding principle in molecular biology. In fact, more than three-quarters of the RNAs produced by transcription of the plant genome are not translated into proteins, and these RNAs directly serve as non-coding RNAs in the regulation of plant life activities at the molecular level. The breakthroughs in high-throughput transcriptome sequencing technology and the establishment and improvement of non-coding RNA experiments have now led to the discovery and confirmation of the biogenesis, mechanisms, and synergistic effects of non-coding RNAs.
View Article and Find Full Text PDFPecan (Carya illinoinensis) and Chinese hickory (Carya cathayensis) are important commercially cultivated nut trees. They are phylogenetically closely related plants; however, they exhibit significantly different phenotypes in response to abiotic stress and development. The rhizosphere selects core microorganisms from bulk soil, playing a pivotal role in the plant's resistance to abiotic stress and growth.
View Article and Find Full Text PDFPecan () nuts are delicious and rich in unsaturated fatty acids, which are beneficial for human health. Their yield is closely related to several factors, such as the ratio of female and male flowers. We sampled and paraffin-sectioned female and male flower buds for one year and determined the stages of initial flower bud differentiation, floral primordium formation, and pistil and stamen primordium formation.
View Article and Find Full Text PDFPecan () is a popular tree nut. Its fruit development undergoes slow growth, rapid expansion, core hardening, and kernel maturation stages. However, little is known about how pecan initiates fruit development and enlargement after pollination.
View Article and Find Full Text PDFFlower bud differentiation represents a crucial transition from vegetative growth to reproductive development. (hickory) is an important economic species in China, with a long juvenile period that hinders its commercial development. In recent years, circular RNAs (circRNAs) have been widely studied and identified as sponges for miRNA regulation of mRNA expression.
View Article and Find Full Text PDFis a classical and precious dual-use plant for both medicine and food in China. It was first recorded in , and has the traditional functions of nourishing yin, antipyresis, tonifying the stomach, and promoting fluid production. The stem is its medicinal part and is rich in active polysaccharide glucomannan.
View Article and Find Full Text PDFBiomass energy is an essential component of the agriculture economy and represents an important and particularly significant renewable energy source in the fight against fossil fuel depletion and global warming. The recognition that many plants naturally synthesize hydrocarbons makes these oil plants indispensable resources for biomass energy, and the advancement of next-generation sequencing technology in recent years has now made available mountains of data on plants that synthesize oil. We have utilized a combination of bioinformatic protocols to acquire key information from this massive amount of genomic data and to assemble it into an oil plant genomic information repository, built through website technology, including Django, Bootstrap, and echarts, to create the Genomic Information Repository for Oil Plants (GROP) portal (http://grop.
View Article and Find Full Text PDFHickory, an endemic woody oil and fruit tree species in China, is of great economic value. However, hickory has a long juvenile period and an inconsistent flowering of males and females, thus influencing the bearing rates and further limiting fruits yield. Currently, it is reported that long noncoding RNAs (lncRNAs) play critical regulatory roles in biological processes.
View Article and Find Full Text PDFDue to its peculiar morphological characteristics, there is dispute as to whether the genus of , a species of Juglandaceae, is or . Most morphologists believe it should be distinguished from the genus while genomicists suggest that belongs to the genus. To explore the taxonomic status of using chloroplast genes, we collected chloroplast genomes of 16 plant species and assembled chloroplast genomes of 10 unpublished species.
View Article and Find Full Text PDFWe studied the stress response of five-year-old Scots pine xylem to mechanical wounding using RNA sequencing. In general, we observed a bimodal response in pine xylem after wounding. Transcripts associated with water deficit stress, defence, and cell wall modification were induced at the earliest time point of three hours; at the same time, growth-related processes were down-regulated.
View Article and Find Full Text PDFThis work investigated the effective doses of biochar (BC) amendment with simulated nitrogen deposition on the stimulation of pecan () growth. A total of nine conditions combining three levels of BC-BC0, 0 t ha year; BC20, 20 t ha year; and BC40, 40 t ha year-and three levels of simulated nitrogen deposition-N0, 0 kg N ha year; N50, 50 kg N ha year; and N150, 150 kg N ha year-were applied throughout 1 year on the pecan-grafted seedlings of cultivar 'Pawnee'. The growth, photosynthesis, chlorophyll and nutrient content in the seedlings were measured.
View Article and Find Full Text PDFJuglandaceae species are plants of great economic value and have been cultivated, domesticated, and utilized by human society for a long time. Their edible, nutrient-rich nuts and tough, durable wood have attracted the attention of botanists and breeders. With the advent of the genomics era, genome sequencing of the Juglandaceae family has been greatly accelerated, and a large amount of data has been generated.
View Article and Find Full Text PDFMol Genet Genomics
August 2019
The SQUAMOSA promoter-binding protein-like (SPL) is a plant-specific transcription factor that influences flowering and vegetative development. Although the SPL genes have been functionally analyzed in many species, studies on the evolutionary history of the whole gene family, and in the Juglandaceae specifically, have been limited. Here, we conducted a phylogenetic relationship analysis of the Juglandaceae SPL gene family compared with other land plant species.
View Article and Find Full Text PDFSilver birch (Betula pendula) is a pioneer boreal tree that can be induced to flower within 1 year. Its rapid life cycle, small (440-Mb) genome, and advanced germplasm resources make birch an attractive model for forest biotechnology. We assembled and chromosomally anchored the nuclear genome of an inbred B.
View Article and Find Full Text PDFHeartwood extractives are important determinants of the natural durability of pine heartwood. The most important phenolic compounds affecting durability are the stilbenes pinosylvin and its monomethylether, which in addition have important functions as phytoalexins in active defense. A substantial portion of the synthesized pinosylvin is 3-methoxylated but the O-methyltransferase responsible for this modification has not been correctly identified.
View Article and Find Full Text PDFIdentification of distinct allelic versions for dihydroflavonol 4-reductase in gerbera cultivars reveals that gerbera DFR enzymes have strong substrate preference in vivo that is not reflected to the activity in vitro. Flavonoids in the model ornamental plant Gerbera hybrida consist of flavones, flavonols and anthocyanins. Anthocyanins accumulate in the adaxial epidermis of petals and give the different cultivars their characteristic red and violet colour.
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