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Publications (61)
The overexpression of miR319 in plants results in delayed senescence, and high levels of miR319-targeted TCP4 transcription factor causes premature onset of this process. However, the underlying mechanisms of this pathway remain elusive. Here, we found that miR319 overexpression results in a decrease in TCP4 abundance and secondary cell wall format...
To survive, sessile plants must adapt to grow and develop when facing water‐deficit stress. However, the molecular mechanisms underlying fine‐tuning of the antagonistic action between stress response and growth remain to be determined. Here, plants overexpressing Lateral Organ Boundaries Domain 15 (LBD15) showed abscisic acid (ABA) hypersensitivity...
Background
Genome editing is essential for crop molecular breeding. However, gene editing in turnip ( Brassica rapa var. rapa ) have not been reported owing to the very low transformation efficiency.
Results
In this study, we established a transformation procedure involving chemical-inducible activation of the BrrWUSa gene, which resulted in high...
Poa pratensis L. (Poaceae) is a valuable grass across the north hemisphere, inhabiting diverse environments with wide altitudinal span, where ubiquitous various kinds of stresses. Phytohormones would be helpful to improve tolerance to abiotic and biotic stresses, but the responses of transcriptome regulation of P. pratensis to exogenous phytohormon...
The phytohormone jasmonate (JA) coordinates stress and growth responses to increase plant survival in unfavorable environments. Although JA can enhance plant UV‐B stress tolerance, the mechanisms underlying the interaction of UV‐B and JA in this response remain unknown. In this study, we demonstrate that the UV RESISTANCE LOCUS 8 ‐ TEOSINTE BRANCHE...
Salix brachista, commonly known as the Cushion willow, is a plant species that is indigenous to the alpine ice edge zones. This remarkable plant is predominantly found in the Hengduan Mountains. As a quintessential example of an alpine plant, the development of a genetic transformation system for Salix brachista is of paramount importance for unrav...
Continuous potato cropping in semi-arid regions, which are vulnerable to erosion, reduces tuber yields and leads to a decline in soil quality. This research delves into the impact of forage cultivation on soil bacterial and archaeal communities and the associated hazard-related virulence genes and antibiotic resistance genes (ARGs) within potato cr...
Change of flower color can readily lead to a shift in pollinators, potentially causing pollinator mediated reproductive isolation or even speciation. Here, we examined the ecological and evolutionary consequences of flower color polymorphism in Roscoea cautleoides, an alpine ginger with sympatric distribution of purple- and yellow-flowered plants....
Nitric oxide (NO) is a redox-dependent signaling molecule that plays a crucial role in regulating a wide range of biological processes in plants. It functions by post-translationally modifying proteins, primarily through S-nitrosation. Thioredoxin (Trx), a small and ubiquitous protein with multifunctional properties, plays a pivotal role in the ant...
In the agricultural areas of the Qinghai-Tibet Plateau, ultraviolet-B (UV-B) radiation varies widely. UV-B can affect the growth and development of plants. Turnip (Brassica rapa var. rapa) is an important traditional economic crop in the Qinghai-Tibet Plateau, but how turnip responds to UV-B and the complex molecular mechanisms underlying UV-B tole...
The number of trichomes significantly increased in CRISPR/Cas9-edited BrrTCP4b turnip (Brassica rapa var. rapa) plants. However, the underlying molecular mechanism remains to be uncovered. In this study, we performed the Y2H screen using BrrTCP4b as the bait, which unveiled an interaction between BrrTCP4b and BrrTTG1, a pivotal WD40-repeat protein...
Nitric oxide (NO) modulates plant response by post-translationally modifying proteins, mainly through S-nitrosylation. Ascorbate peroxidase (APX) in the ascorbate-glutathione (AsA-GSH) cycle participates in the removal of hydrogen peroxide (H2O2). However, the relationship between S-nitrosylation and the role of tomato APX (SlAPX) under nitrate str...
Plants that are adapted to harsh environments offer enormous opportunity to understand stress responses in ecological systems. Stipa capillacea is widely distributed in the frigid and arid region of the Tibetan Plateau, but its signal transduction system under cold stress has not been characterized. In this study, we isolated a cDNA encoding the si...
In most plants, sucrose, a major storage sugar, is transported into sink organs to support their growth. This key physiological process is dependent on the function of sucrose transporters. Sucrose export from source tissues is predominantly controlled through the activity of SUCROSE TRANSPORTER 2 (SUC2), required for the loading of sucrose into th...
Pseudogenes are important resources for investigations of genome evolution and genomic diversity because they are nonfunctional, but they have regulatory effects influencing plant adaptation and diversification. However, few systematic comparative analyses of pseudogenes in closely related species have been conducted. We herein present a turnip (Br...
The WUSCHEL-related homeobox (WOX) proteins are a class of transcription factors exclusive to plants. They can promote cell division or inhibit stem cell differentiation to regulate plant growth and development. However, the WOX transcription factor genes in the monocotyledon Dendrobium catenatum Lindl. remain relatively uncharacterized. Specifical...
The LATERAL ORGAN BOUNDARIES DOMAIN (LBD) gene family comprises plant-specific transcription factors that control cell proliferation and differentiation during growth and development in many plant species. However, to date, no studies of the LBD gene family in Dendrobium catenatum have been reported. In this study, a genome-wide analysis of LBD gen...
Teosinte branched1/cycloidea/proliferating cell factor (TCP) gene family members are plant-specific transcription factors that regulate plant growth and development by controlling cell proliferation and differentiation. However, there are no reported studies on the TCP gene family in Dendrobium catenatum Lindl. Here, a genome-wide analysis of TCP g...
Turnip is a member of the Brassica rapa species and is characterized by a swollen taproot that develops from the hypocotyl and part of the root. Gibberellins (GAs) are plant growth regulators involved in promoting cell elongation and play important roles in many aspects of plant growth and development. Interestingly, exogenous application of GA3 wa...
Natural selection drives local adaptations of species to biotic or abiotic environmental stresses. As a result, adaptive phenotypic divergence can evolve among related species living in different habitats. However, the genetic foundation of this divergence process remains largely unknown. Two closely related alpine grass species, Stipa capillacea a...
The Lateral Organ Boundaries Domain (LBD) genes encode highly conserved plant-specific LOB domain proteins which regulate growth and development in various species. However, members of the LBD gene family have yet to be identified in Brassica rapa var. rapa. In the present study, fifty-nine LBD genes were identified and distributed on 10 chromosome...
The Hengduan Mountains (HDM) biodiversity hotspot exhibits exceptional alpine plant diversity. Here, we investigate factors driving intraspecific divergence within a HDM alpine species Salix brachista (Cushion willow), a common component of subnival assemblages. We produce a high-quality genome assembly for this species and characterize its genetic...
Plant adapted in the fragile zone offer enormous opportunity to understand the stress biology under ecological scenario . Stipa capillacea is widely distributed in the frigid and arid region of Tibet Plateau, but its signal system has never been investigated yet. In this study, we isolated a signal transduction gene, ScCBL6 , in Stipa capillacea ,...
Background:
In situ hybridization (ISH) is a general molecular biological technique used to determine the spatiotemporal expression of genes in many species. In the past few years, numerous ISH protocols have been established in many species. Turnip (Brassica rapa var. rapa) is an important crop in the world, especially in the Plateau area of Chin...
Cuticular wax accumulation in plant contributed to drought tolerance. Here, we compared the drought levels on two varieties with different genotypes in turnip (Brassica rapa var. rapa) and found that the drought tolerance was higher in the waxy KTRG-B48a than in the wax-free KTRG-B48b. A combination of PacBio and Illumina sequencing analyses reveal...
Featured Application
The current work describes the adaptive evolution of turnip in the Qinghai Tibetan Plateau and its surrounding regions which will provide valuable information for genetics and plant breeding studies of Brassica vegetables.
Abstract
Genome size (GS) was proposed as proxy for gross phenotypic and environmental changes in plants....
Light signals are perceived by multiple photoreceptors that converge to suppress the RING E3 ubiquitin ligase CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1) for the regulation of stomatal development. Thus, COP1 is a point of integration between light signaling and stomatal patterning. However, how light signaling is collected into COP1 for the production a...
Main conclusion:
The inducible vectors pER8-Gateway-3Flag and pER8-Gateway-3Flag-SRDX have been subjected to considerable research in terms of the function of transcription factors (TFs) via transcription activity and repression, respectively. Approximately 1500 TFs have been identified in Arabidopsis thaliana genome. To identify their functions,...
Brassica rapa var. rapa (turnip) is considered a main source of food for the inhabitants of the Qinghai- Tibetan Plateau (QTP) and its adjacent highlands when other crops are scarce. The QTP ranges from lat. 25.59ºN to 39.49ºN and from long. 73.29ºE to 104.40ºE, whereas the Yunnan Plateau ranges from lat. 20.00ºN to 29.16ºN and from long. 96.00ºE t...
Calcium-dependent protein kinases (CDPKs) are crucial calcium sensors that play important roles in the regulation of plant growth and developmental processes, as well as protective responses to environmental stress. Here, we identified 28 CDPK genes from barley and cloned 5 new, full-length CDPK genes, MLOC_58648a, MLOC_19618a, MLOC_71733a, AK24936...
Calcium-dependent protein kinases (CDPKs) as crucial sensors of calcium concentration changes play important roles in responding to abiotic and biotic stresses. In this study, 55 BrrCDPK genes, which were phylogenetically clustered into four subfamilies, were identified. Chromosome locations indicated that the CDPK family in turnip expanded by segm...
Figure S1 Cross‐sections of hypocotyls and roots of F1 seedlings.
Table S1 Primers used for qRT‐PCR analysis in this study.
The teosinte branched1/cycloidea/proliferating cell factor (TCP) gene family is a plant-specific transcription factor that participates in the control of plant development by regulating cell proliferation. However, no report is currently available about this gene family in turnips (Brassica rapa ssp. rapa). In this study, a genome-wide analysis of...
Background: Stipa purpurea, the dominant species of the alpine steppe in the Tibetan Plateau, survives well under various abiotic stresses including drought, hypoxia and chilling.
Aims: To understand the molecular mechanism by which alpine plants including S. purpurea adapt to the abiotic environmental factors of the Tibetan Plateau.
Methods: We...
Key message
SpERF1 acts as a positive regulator, contributing to drought stress tolerance in
A. thaliana
through activating DRE/CRT elements in the promoters of abiotic stress-responsive genes.
Abstract
Stipa purpurea is an endemic perennial grass species in alpine arid and semi-arid meadows on the Qinghai-Xizang Plateau, which is highly tolerant a...
The purpose of the present study was to characterize SpCBL6 (GenBank accession number: KT780442) from Stipa purpurea and elucidate the function of this protein in abiotic stress. The full-length cDNA of SpCBL6 was isolated from S. purpurea by rapid amplification of cDNA ends methods. Laser confocal microscopy was used to analyze the subcellular loc...
Polyploid species generally occupy harsher habitats (characterized by cold, drought and/or high altitude) than diploids, but the converse was observed for Chamerion angustifolium, in which diploid plants generally inhabit higher altitudes than their polyploid derivatives. Plants at high altitudes may experience cold-induced water stress, and we the...
Stipa purpurea (S. purpurea) is the dominant plant species in the alpine steppe of the Qinghai-Tibet Plateau, China. It is highly resistant to cold and drought conditions. However, the underlying mechanisms regulating the stress tolerance are unknown. In this study, a CIPK gene from S. purpurea (SpCIPK26) was isolated. The SpCIPK26 coding region co...
Stipa purpurea is widely distributed along a large precipitation gradient on the Tibetan Plateau. This implies that S. purpurea from different populations may have different responses to drought stress. To explore this we compared the morphological and physiological changes of S. purpurea seedlings cultivated from seeds from Gar County and Nagqu Co...
Table S1. Information on the species, populations and sequences included in the phylogenetic analysis.
Figure S1. Fluorescence histograms illustrating the nuclear DNA contents of A. guttata (A) and A. szechenyi (B) obtained by flow cytometric analysis of propidium iodide‐stained nuclei.
Figure S2. Vascular phenotypes of the roots of A. guttata (A...
To explore uncertain aspects of the processes that maintain species boundaries, we evaluated contributions of pre- and postpollination reproductive isolation mechanisms in sympatric populations of Arnebia guttata and A. szechenyi. For this, we investigated their phylogenetic relationships, traits, microenvironments, pollinator visits, action of nat...
Members of the WUSCHEL-related homeobox (WOX) gene family encode plant-specific transcription factors that play key roles in controlling gene expression at all stages of plant development. In the present study, we isolated and characterized SpWOX13 (GenBank accession no. KJ713172), a member of the WOX gene family, from Stipa purpurea. Sequence and...
Eutrophication is a serious threat to ecosystem stability and use of water resources worldwide. Accordingly, physical, chemical, and biological technologies have been developed to treat eutrophic water. Phytoremediation has attracted a great deal of attention, and water hyacinth (Eichhornia crassipes) is regarded as one of the best plants for purif...
The establishment of ad-abaxial polarity is an important characteristic of the development of lateral organs in plants. YABBY genes encode higher plant-specific nuclear proteins which play critical roles in promoting abaxial cell fate. IaYABBY2 (IaYAB2, Genbank accession no. KF250432), isolated from Incarvillea arguta, is a member of YABBY gene fam...
Wild relatives of crops provide plant breeders with a broad pool of potentially useful genetic sources. The genus Kengyilia, being a member of the tribe Triticeae, is related to wheat, barley, and other cereals and forage grasses. We studied proteomic changes in K. thoroldiana seedlings in response to drought stress after withholding water for 0, 3...
Plantlets of Populus yunnanensis Dode were examined in a greenhouse for 48 h to analyze their physiological and proteomic responses to sustained heat, drought, and combined heat and drought. Compared with the application of a single stress, simultaneous treatment with both stresses damaged the plantlets more heavily. The plantlets experienced two a...
Variations in elevation limit the growth and distribution of alpine plants because multiple environmental stresses impact plant growth, including sharp temperature shifts, strong ultraviolet radiation exposure, low oxygen content, etc. Alpine plants have developed special strategies to help survive the harsh environments of high mountains, but the...
