Qiaomei Qin

Guangdong Polytechnic Normal University

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Jing‐Bo Ni

South China Botanical Garden

Yi‐Hua Tong

South China Botanical Garden

Nian‐He Xia

Northwest Normal University

Xi‐Rong Zheng

Guangdong Academy of Forestry

Cheng Wang

Hubei Engineering University

Yingying Fan

Jiamusi University

Zhuo‐Yu Cai

Nanjing Forestry University

Xianliang Zhu

University of Chinese Academy of Sciences

Qinlan Jia

Xinjiang Academy of Agricultural Sciences

Lipo Pan

Guangxi Institute of Botany

Cooperative Institutions

South China Botanical Garden

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Ministry of Agriculture and Rural Affairs

Beijing Botanical Garden

Xinjiang Academy of Agricultural Sciences

China National Botanical Garden

Institute of Quality Standards and Testing Technology for Agro Products

Northwest A&F University

State Forestry and Grassland Administration

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The complete chloroplast genome of Aganope dinghuensis (Fabaceae)

Mitochondrial DNA Part B (2021)

Zheng‐Feng Wang Qiaomei Qin Honglin Cao

Aganope is a genus in the family Fabaceae, with only 11 species. They are distributed throughout Asia and Africa. Aganope dinghuensis, a newly reported species, is native to China with a restricted distribution. We, therefore, report its complete chloroplast genome for better future conservation. The chloroplast genome of A. dinghuensis is 143,690 bp, with a GC content of 35.32%. In the genome, a pair of inverted repeat regions of 13,015 bp each, a large single-copy region of 98,824 bp, and a small single-copy region of 18,836 bp were identified. Genome annotation identified 115 genes, comprising 74 protein-coding genes, 8 ribosomal RNA genes, and 33 transfer RNA genes. Repeat analysis indicates that the chloroplast genome of A. dinghuensis contains 126 simple sequence repeats (SSR), of which the majority are A/T mononucleotides. Phylogenetic analysis revealed that A. dinghuensis is a sister to the clade that includes Indigofera tinctoria, Desmodium uncinatum, Sarcodum scandens, Wisteria brachybotrys, and Callerya nitida.

Inverted repeat

10.1080/23802359.2020.1871437

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Implementation of the HACCP System for Apple Juice Concentrate Based on Patulin Prevention and Control

Foods (2023)

Shuaishuai Duan Fengjuan Liu Qiaomei Qin Qinlan Jia Xiaoqian Cao

Patulin (PAT) is a toxic secondary metabolite produced by Aspergillus sp. and Penicillium sp., which acts as a contaminant of most apples and their products. The internationally recognized HACCP system is selected as the theoretical basis to more effectively reduce the PAT in apple juice concentrate (AJC). Through field investigation of apple juice concentrate (AJC) production enterprises, we collected 117 samples from 13 steps of AJC production, including whole apple, apple pulp, and apple juice. PAT contents were analyzed via high-performance liquid chromatography (HPLC) and compared with samples from the different production processes. The result demonstrated that the PAT content was significantly (p < 0.05) influenced by five processes, receipt of raw apples, sorting of raw apples, adsorption step, pasteurization, and aseptic filling. These processes were determined as the CCPs. Monitoring systems for maintaining CCPs within acceptable limits were established, and corrective actions were proposed in case a CCP was surpassed. Based on the above-identified CCPs, critical limits, and control methods (corrective actions), a HACCP plan related to the production process of AJC was established. This study provided important guidance for juice manufacturers wishing to effectively control the PAT content in their products.

Patulin

Pasteurization

Aseptic processing

10.3390/foods12040786

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Sinosasa (Poaceae: Bambusoideae), a new genus from China

Taxon (2020)

Qiaomei Qin Yi‐Hua Tong Xi‐Rong Zheng Jing‐Bo Ni Nian‐He Xia

Abstract Sasa is a taxonomically problematic genus of bamboos mainly distributed in Japan and China. Recent phylogenetic analyses demonstrated that Sasa is polyphyletic, with Chinese species of Sasa being distantly related to species from Japan. Based on newly collected flowering materials from China, it was found that the Chinese species hitherto placed in Sasa subg. Sasa have racemose synflorescences, 2–3 florets per spikelet with a rudimentary terminal floret, and 3 stamens and 2 stigmas per floret. This distinguishes them from the type of Sasa and other species of that genus, which have paniculate synflorescences, 4–10 florets per spikelet, and 6 stamens and 3 stigmas per floret. Together with several differences in vegetative characters between these two groups, this morphological distinction warrants recognition of a new genus for the Chinese species hitherto placed in Sasa subg. Sasa . The results of our molecular phylogenetic analyses also strongly support the monophyly of the Chinese representatives of Sasa subg. Sasa . The new genus Sinosasa is described to accommodate the Chinese species, including three previously recognized species and four new species.

Sasa

Polyphyly

Monophyly

10.1002/tax.12422

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The Study of Genetic Diversity and Structure of Extremely Endangered Manglietia longipedunculata and Endangered Manglietia insignis

Research Square (Research Square) (2023)

Qiaomei Qin Yishan Yang Wei Xiao Lipo Pan Xianliang Zhu

Abstract To strengthen the protection of Manglietia insignis and Manglietia longipedunculata germplasm resources, the endangered mechanism and scientific protection strategies of these two species were investigated. A novel, effective, and flexible DNA sequencing library construction approach-Hyper-seq was used in this study to develop large-scale genomic single nucleotide polymorphism (SNP) and to evaluate the genetic diversity and population structure of M. insignis and M. longipedunculata . Genetic diversity analysis demonstrated that the genetic diversity of M. insignis , which expected heterozygosity ( H e ) was 0.1435 and nucleotide diversity (π) was 0.1541. M. longipedunculata , lower than in M. longipedunculata ( H e = 0.1793, π = 0.1916) with narrow distribution. The genetic diversity of the two ex-situ conservation populations ( H e =0.1797, 0.1990, π = 0.1894, 0.2121 ) was higher than the wild populations ( H e =0.1591, π = 0.1733), suggesting that the artificial ex-situ conservation population can effectively protect its genetic diversity and the genetic breeding in future studies. The mean inbreeding coefficient ( F IS ) in the M. longipedunculata and M. insignis populations were − 0.0141 and − 0.0176, respectively, indicating that the two populations were largely outcrossing in the natural state. The frequency of rare alleles in M. insignis (Tajima's D = 0.3436 > 0) and M. longipedunculata (Tajima's D = 0.2119 > 0) populations was low, which may be under balanced selection pressure or experienced population shrinkage. A high degree of genetic differentiation between the two species was detected, but moderate among the populations of the same species. The results of cluster analysis demonstrated a obvious separation between the two species with all individuals clustering according to species differences. It is worth noting that individuals 7, 8, and 9 in the ML-CW M. insignis population first clustered with M. longipedunculata . Furthermore, these individuals also contained a small genetic component from M. longipedunculata . Principal component and genetic relationship analysis also demonstrated that some M. insignis individuals exhibited an evident genetic relationship with M. longipedunculata . These populations can therefore be preferentially selected in the further cross-breeding experiments of the two species. The genetic diversity and structure of M. insignis and M. longipedunculata were compared in this study. Not only were the genetic characteristics of the two species explored for the first time, but the genetic relationship between the two species was also preliminarily explored. This study provides a scientific basis for the development of future protection strategies at the molecular level.

Ex situ conservation

Outcrossing

10.21203/rs.3.rs-3555362/v1

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Effects of Bacillus amyloliquefaciens XJ-BV2007 on Growth of Alternaria alternata and Production of Tenuazonic Acid

Toxins (2023)

Qinlan Jia Yingying Fan Shuaishuai Duan Qiaomei Qin Yu Ding

Large amounts of processing tomato are grown in Xinjiang, China. Tomato black spot disease, caused by Alternaria spp., and the produced alternaria toxins in tomato products are posing risks to human health. In this study, we isolated a rhizospheric bacterium, XJ-BV2007, from tomato (Solanum lycopersicum) fields, which we identified as Bacillus amyloliquefaciens. We found that this bacterium has a strong antagonistic effect against Alternaria alternata and reduces the accumulation of alternaria toxins in tomatoes. According to the antifungal activity of the bacteria-free filtrate, we revealed that B. amyloliquefaciens XJ-BV2007 suppresses A. alternata by the production of antifungal metabolites. Combining semi-preparative high-performance liquid chromatography, we employed UPLC-QTOF-MS analysis and the Oxford cup experiment to find that fengycin plays an important role in inhibiting A. alternata. This paper firstly reported that B. amyloliquefaciens efficiently controls tomato black spot disease and mycotoxins caused by A. alternata. B. amyloliquefaciens XJ-BV2007 may provide an alternative biocontrol strain for the prevention of tomato black spot disease.

Bacillus amyloliquefaciens

Black spot

10.3390/toxins15010053

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Citations (11)

THE STUDY OF GENETIC DIVERSITY AND STRUCTURE OF EXTREMELY ENDANGERED MANGLIETIA LONGIPEDUNCULATA AND ENDANGERED MANGLIETIA INSIGNIS

Applied Ecology and Environmental Research (2024)

Qiaomei Qin Yujie Yang Wei Xin Lipo Pan Xianliang Zhu

10.15666/aeer/2206_52915309

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Melocalamus grandiauritus (Poaceae: Bambusoideae), a new clambering species from northern Vietnam

Nordic Journal of Botany (2019)

Qiaomei Qin Yi‐Hua Tong Xi‐Rong Zheng Jing‐Bo Ni Vũ Tiến Chính

Here we describe and illustrate a new species, Melocalamus grandiauritus N.H. Xia, Q.M. Qin & J. B. Ni sp. nov., from the lowland forest in Thanh Hoa Province, Vietnam. Molecular phylogeny based on the GBSSI indicates that this species is a member of Melocalamus . Morphologically, M. grandiauritus is different from all congeneric species in Vietnam. It is somewhat similar to M. pacoensis H.N.Nguyen & V.T.Tran, but is easily distinguished by having much wider suborbicular culm leaf auricles, very high and ventricose auricles of foliage leaves, entire ligules of both culm leaves and foliage leaves, and large leaf blades.

10.1111/njb.02098

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Citations (1)

Phomopamide A, a cyclic pentadepsipeptide with α-glucosidase inhibition activity from the endophytic fungus Diaporthe sp.

Natural Product Research (2024)

Zhonghua Yu Xin-Miao Nong Shanshan Wei Gang Wu Qiaomei Qin

An undescribed cytotoxic cyclopeptide named phomopamide A (1) was isolated from Diaporthe sp., which is an endophytic fungus from Artemisia argyi. Phomopamide A (1) featured an pentadepsipeptide skeleton and composed of two Phe, one Val, one Leu, and one 2-hydroxyoctanoic acid units. The structure of this new compound was fully characterised on the basis of extensive spectroscopic analysis. Moreover, phomopamide A was evaluated for in vitro cyctotoxic and α-glucosidase inhibitory activity. As a result, phomopaminde A exhibited no cytotoxic activity against four tumour cell lines, while it showed a potent α-glucosidase inhibition effect with IC50 value of 62.35 µM.

IC50

10.1080/14786419.2024.2309657

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Genomic analysis based on chromosome-level genome assembly reveals Myrtaceae evolution and terpene biosynthesis of rose myrtle

BMC Genomics (2024)

Ling Yang Jingjing Jin Shanwu Lyu Fangqiu Zhang Peijian Cao

Myrtaceae

Terpene

Rose (mathematics)

10.1186/s12864-024-10509-6

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Schizostachyum dakrongense (Poaceae, Bambusoideae), a new species from Dakrong Nature Reserve, Vietnam

PhytoKeys (2020)

Yi‐Hua Tong Xi‐Rong Zheng You Yuan Zhang Qiaomei Qin Jing‐Bo Ni

A new genus of Arundinarieae, Khoonmengia, is established to accommodate a unique new bamboo species, K. honbaensis, from central-southern Vietnam. The morphological features, habitats and distribution of Khoonmengia and related genera, i.e. Ampelocalamus and Hsuehochloa, are compared. The characters of its scrambling habit, internodes with brownish green dots, conspicuous nodes swollen at one side, elliptic buds wholly sunken into culm, extravaginal branching pattern, mid-culm branch complement with one central dominant branch elongating to reiterate the culm accompanied by several lateral slender branches, swollen culm sheath base with a distinctive zone of transverse wrinkles, synflorescence composed of only one spikelet, single or several to many synflorescences arranged into a raceme or panicle terminal on leafy branches, purple anthers and nut-like caryopsis with hardened pericarp and loosely adherent lemma and palea distinguish K. honbaensis from morphologically similar taxa. In order to investigate the phylogenetic position of this unknown bamboo, molecular phylogenetic analyses based on the nuclear gene GBSSI were also conducted, and the results proved that K. honbaensis is definitely a member of Arundinarieae with an isolated position, which also indicated that this species could not be assigned to any of the already described genera and supported the establishment of the new genus.

Apex (geometry)

10.3897/phytokeys.138.39512

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Citations (6)