High-throughput identification of Prunus mume freezing-tolerance genes based on yeast screening system and functional verification of PmRCI2-3 in Arabidopsis.

Prunus mume tops the ten most famous flowers of China with high ornamental value, and low temperature is the main factor limiting its northward migration. Cold resistance improvement is one of the important breeding directions of Rosaceae ornamental plants, especially the Prunus mume. Here, 29 genes from P.

Chromosome-level genome assembly of banaba (Lagerstroemia speciosa L.).

Lagerstroemia speciosa is a famous medicinal and ornamental plant of the Lagerstroemia genus, with large and gorgeous flowers and a flowering period of 3 to 5 months. L. speciosa extracts have been used for many years in folk medicine to treat diabetes.

The Marssonina rosae effector MrSEP43 suppresses immunity in rose by targeting the orphan protein RcBROG.

Rose black spot disease, caused by Marssonina rosae (syn. Diplocarpon rosae), is one of the most widespread diseases of field-grown roses worldwide. Pathogens have been found to interfere with or stimulate plant immune responses by secreting effectors.

Indole-3 acetic acid negatively regulates rose black spot disease resistance through antagonizing the salicylic acid signaling pathway via jasmonic acid.

IAA cooperates with JA to inhibit SA and negatively regulates rose black spot disease resistance. Black spot disease caused by the fungus Marssonina rosae is the most prevalent and severe ailment in rose cultivation, leading to the appearance of black spots on leaves and eventual leaf fall, significantly impacting the utilization of roses in gardens. Salicylic acid (SA) and jasmonic acid (JA) are pivotal hormones that collaborate with indole-3 acetic acid (IAA) in regulating plant defense responses; however, the detailed mechanisms underlying the induction of black spot disease resistance by IAA, JA, and SA remain unclear.

A 49-bp deletion of results in a double flower phenotype in .

The double flower is an important trait with substantial ornamental value. While mutations in TOE-type or () genes play a crucial role in enhancing petal number in ornamental plants, the complete mechanism underlying the formation of double flowers remains to be fully elucidated. Through the application of bulked segregant analysis (BSA), we identified a novel gene, (), characterized by a 49-bp deletion in double-flowered .

PfPIN5 promotes style elongation by regulating cell length in Primula forbesii Franch.

Background And Aims: Style dimorphism is one of the polymorphic characteristics of flowers in heterostylous plants, which have two types of flowers: the pin morph, with long styles and shorter anthers, and the thrum morph, with short styles and longer anthers. The formation of dimorphic styles has received attention in the plant world. Previous studies showed that CYP734A50 in Primula determined style length and limited style elongation and that the brassinosteroid metabolic pathway was involved in regulation of style length.

Genome-Wide Identification of Callose Synthase Family Genes and Their Expression Analysis in Floral Bud Development and Hormonal Responses in .

Callose is an important polysaccharide composed of beta-1,3-glucans and is widely implicated in plant development and defense responses. Callose synthesis is mainly catalyzed by a family of callose synthases, also known as glucan synthase-like (GSL) enzymes. Despite the fact that GSL family genes were studied in a few plant species, their functional roles have not been fully understood in woody perennials.

Integrative Analysis of Metabolome and Transcriptome Revealed Lutein Metabolism Contributed to Yellow Flower Formation in .

is a famous ornamental woody tree with colorful flowers. with yellow flowers is one of the most precious varieties. Regretfully, metabolites and regulatory mechanisms of yellow flowers in are still unclear.

Phylogeny of Gene Family and Expression Analysis of Flower Coloration and Stress Response in .

The gene family plays a crucial role in the cleavage of carotenoids, converting them into apocarotenoids. This process not only impacts the physiology and development of plants but also enhances their tolerance toward different stresses. However, the character of the gene family and its role in ornamental woody remain unclear.

Genome assembly and resequencing analyses provide new insights into the evolution, domestication and ornamental traits of crape myrtle.

Crape myrtle () is a globally used ornamental woody plant and is the representative species of . However, studies on the evolution and genomic breeding of have been hindered by the lack of a reference genome. Here we assembled the first high-quality genome of using PacBio combined with Hi-C scaffolding to anchor the 329.

Whole-Genome Identification of Regulatory Function of CDPK Gene Families in Cold Stress Response for and var. Tortuosa.

Calcium-dependent protein kinases (CDPK) are known to mediate plant growth and development and respond to various environmental changes. Here, we performed whole-genome identification of CDPK families in cultivated and wild mei (). We identified 14 and 17 CDPK genes in and var.

Genome-Wide Identification of the and Gene Families in Response to Cold Stress in .

Protein kinases of the MAPK cascade family (MAPKKK-MAPKK-MAPK) play an essential role in plant stress response and hormone signal transduction. However, their role in the cold hardiness of (Mei), a class of ornamental woody plant, remains unclear. In this study, we use bioinformatic approaches to assess and analyze two related protein kinase families, namely, MAP kinases (MPKs) and MAPK kinases (MKKs), in wild and its variety var.

Corrigendum: Genome-wide identification of Aux/IAA gene family and their expression analysis in .

[This corrects the article DOI: 10.3389/fgene.2022.

FsHemF is involved in the formation of yellow Forsythia leaves by regulating chlorophyll synthesis in response to light intensity.

The leaves of Forsythia koreana 'Suwon Gold' are yellow under natural light condition and can revert to green when the light intensity is reduced. To understand the molecular mechanism of leaf color changes in response to light intensity, we compared the chlorophyll content and precursor content between yellow- and green-leaf Forsythia under shade and light-recovery conditions. We identified the conversion of coproporphyrin III (Coprogen III) to protoporphyrin IX (Proto IX) as the primary rate-limiting step of chlorophyll biosynthesis in yellow-leaf Forsythia.

Genes Were Involved in Regulating Axillary Bud Formation of × .

Branching is an important agronomic and economic trait in cut chrysanthemums. The axillary meristem (AM) formation of the axillary buds of cut chrysanthemums has a decisive role in its branching characteristics. However, little is known about the regulation mechanism of axillary meristem formation in chrysanthemums at the molecular level.

Integration of chromatin accessibility and gene expression reveals new regulators of cold hardening to enhance freezing tolerance in Prunus mume.

Low temperature is one of the most important abiotic factors limiting the growth, development and geographical distribution of plants. Prunus mume is an attractive woody ornamental plant that blooms in early spring in Beijing. However, the molecular mechanisms underlying cold hardening to enhance freezing tolerance in Prunus genus remains elusive.

Multiomics analysis reveals the mechanisms underlying the different floral colors and fragrances of Rosa hybrida cultivars.

The color and fragrance of rose flowers affect their commercial value. However, several rose varieties with new floral colors developed by the bud mutation method lost their fragrance during the breeding process, raising the question: Is there a relationship between floral color and aroma traits? Rose cultivar 'Yellow Island' (YI) with intensely aroma and yellow petals, while its bud mutant 'Past Feeling' (PF) with light aroma and pink petals mixing some yellow, two cultivars were used to explore this question using multiomics approaches. We investigated the genomic polymorphisms between PF and YI by whole-genome resequencing.

Genome-wide identification of Aux/IAA gene family and their expression analysis in .

(Aux/IAAs), an early auxin-responsive gene family, is important for plant growth and development. To fully comprehend the character of genes in woody plants, we identified 19 genes in and dissected their protein domains, phylogenetic relationship, gene structure, promoter, and expression patterns during floral bud flushing, auxin response, and abiotic stress response. The study showed that PmIAA proteins shared conserved Aux/IAA domain, but differed in protein motif composition.

The -Targeted () Transcription Factor Regulates the Flowering Time by Binding to the Promoter of () in .

, a famous perennial ornamental plant and fruit tree in Asia, blooms in winter or early spring in the Yangtze River area. The flowering time directly determines its ornamental and economic value, so it is of great significance to study the molecular mechanism of flowering time. (), often regulated by , is an important flowering regulator, although its function is unknown in .

Comparative transcriptome analysis identified and in regulating yellow-leaf coloration in .

Leaf color is one of the most important features for plants used for landscape and ornamental purposes. However, the regulatory mechanism of yellow leaf coloration still remains elusive in many plant species. To understand the complex genetic mechanism of yellow-leaf , we first compared the pigment content and leaf anatomical structure of yellow-leaf and green-leaf accessions derived from a hybrid population.

Genome-Wide Identification, Evolution, and Expression Analysis of GASA Gene Family in .

The Gibberellic Acid Stimulated Arabidopsis/Gibberellin Stimulated Transcript (GASA/GAST) gene family is a group of plant-specific genes encoding cysteine-rich peptides essential to plant growth, development, and stress responses. Although GASA family genes have been identified in various plant species, their functional roles in are still unknown. In this study, a total of 16 genes were identified via a genome-wide scan in and were grouped into three major gene clades based on the phylogenetic tree.

Integrated transcriptome and small RNA sequencing in revealing miRNA-mediated regulatory network of floral bud break in .

MicroRNAs is one class of small non-coding RNAs that play important roles in plant growth and development. Though miRNAs and their target genes have been widely studied in many plant species, their functional roles in floral bud break and dormancy release in woody perennials is still unclear. In this study, we applied transcriptome and small RNA sequencing together to systematically explore the transcriptional and post-transcriptional regulation of floral bud break in .