Disentangling Taxonomic Confusions in the Group Using Mitochondrial Genomic Data (Lepidoptera: Pieridae).

Pierid species of the group are among the largest Sino-Himalayan members of genus , with four conventionally recognised species, namely , , , and . Recent publications indicated that some of these species may contain more than one species despite their similar morphological characters. The present research analysed this group of butterflies using mitogenomic data, and proved that , , , and should be recognised as distinct species, while , and should be subspecies of .

Combined Genome-Wide Association Study and Linkage Analysis for Mining Candidate Genes for the Kernel Row Number in Maize ( L.).

Kernel row number (KRN) is one of the key traits that significantly affect maize yield and productivity. Therefore, investigating the candidate genes and their functions in regulating KRN provides a theoretical basis and practical direction for genetic improvement in maize breeding, which is vital for increasing maize yield and understanding domestication. In this study, three recombinant inbred line (RIL) populations were developed using the parental lines AN20, YML1218, CM395, and Ye107, resulting in a multiparent population comprising a total of 490 F9 RILs.

Discovery of candidate genes enhancing kernel protein content in tropical maize introgression lines.

Background: In this study, tropical maize germplasms were used to construct a multiparent population (MPP) to identify novel genes associated with kernel protein content. The kernel protein content was quantified using near-infrared spectroscopy (NIRS) in the MPP, which was evaluated in three different environments.

Results: QTL mapping revealed 23 significant QTLs tightly linked to kernel protein content, with phenotypic variation ranging from 8.

QTL mapping and genome-wide association analysis reveal genetic loci and candidate gene for resistance to gray leaf spot in tropical and subtropical maize germplasm.

Using QTL mapping and GWAS, two candidate genes (Zm00001d051039 and Zm00001d051147) were consistently identified across the three different environments and BLUP values. GWAS analysis identified the candidate gene, Zm00001d044845. These genes were subsequently validated to exhibit a significant association with maize gray leaf spot (GLS) resistance.

Simulation of climate change effect on the global distribution of .

, originated from East Asia, is one of the original ancestors of modern roses. It is also an important genetic resource and rootstock for rose cultivation. Due to its high resistance and vigorous growth, has become an invasive species in some introduction sites, such as North America.

Dissection of Common Rust Resistance in Tropical Maize Multiparent Population through GWAS and Linkage Studies.

Common rust (CR), caused by , is a major foliar disease in maize that leads to quality deterioration and yield losses. To dissect the genetic architecture of CR resistance in maize, this study utilized the susceptible temperate inbred line Ye107 as the male parent crossed with three resistant tropical maize inbred lines (CML312, D39, and Y32) to generate 627 F recombinant inbred lines (RILs), with the aim of identifying maize disease-resistant loci and candidate genes for common rust. Phenotypic data showed good segregation between resistance and susceptibility, with varying degrees of resistance observed across different subpopulations.

First Report of Causing Leaf Spot on in China.

Yunnan Province is the major region for coffee (Coffea arabica) cultivation in China, contributing to over 98% of the national yield and total production value (Ma et al. 2022). In May 2023, brown spot symptoms were observed only on the leaves of coffee plants in a field located in Baoshan City (98°52'37.

Advancements in Research on Prevention and Control Strategies for Maize White Spot Disease.

Maize white spot (MWS), caused by the bacterium , is a serious disease that significantly impacts maize production and productivity. In recent years, outbreaks of white spot disease have resulted in substantial maize yield losses in southwest China. Researchers from various countries worldwide have conducted extensive research on this pathogen, including its isolation and identification, the localization of resistance genes, transmission pathways, as well as potential control measures.

First Report of Fusarium oxysporum Causing Leaf Wilt on Dinteranthus vanzylii (Green Stone Plant) in China.

Dinteranthus vanzylii is a low-growing species in the family Aizoaceae, native to southern Africa, with a pair of thick grey leaves covered with dark red spots and stripes. This stone-like succulent grows near the ground, which may protect it from water evaporation and herbivores. Dinteranthus vanzylii has become popular in China due to its attractive appearance and easy indoor cultivation.

Loss of Rose Fragrance under Chilling Stress Is Associated with Changes in DNA Methylation and Volatile Biosynthesis.

Rose plants are widely cultivated as cut flowers worldwide and have economic value as sources of natural fragrance and flavoring. 'Crimson Glory', whose petals have a pleasant fragrance, is one of the most important cultivars of edible rose plants. Flower storage at low-temperature is widely applied in production to maintain quality; however, chilling results in a decrease in aromatic volatiles.

Effects of Gibberellin Pre-Treatment on Seed Germination and Seedling Physiology Characteristics in Industrial Hemp under Drought Stress Condition.

The present study aimed to explore the effects of exogenous gibberellins (GAs) on seed germination and subsequent seedling growth of hemp ( L.) under drought stress. Seeds of two industrial hemp cultivars i.

Transcriptome analysis reveals reasons for the low tolerance of Clostridium tyrobutyricum to furan derivatives.

Lignocellulosic biomass is considered the most abundant and renewable feedstock for biobased butyric acid production. However, the furan derivatives (FAs, mainly furfural and 5-hydroxymethylfurfural) generated from the pretreatment of lignocellulose severely inhibit the growth of Clostridium tyrobutyricum, which is the best strain for producing butyric acid. The tolerance mechanism of C.

First Report of Fusarium oxysporum Causing Stem Rot on Mammillaria humboldtii in China.

Mammillaria humboldtii found in Mexico is a short-globose ornamental cactus species of the Cactaceae family, which has gained increasing popularity in China. It is characterized by tuberculate stems, dimorphic areoles, small pink flowers and pitted seed cell walls. The populations of wild M.

Characterization of the Complete Mitochondrial Genome of Eight Diurnal Hawkmoths (Lepidoptera: Sphingidae): New Insights into the Origin and Evolution of Diurnalism in Sphingids.

In this study, the mitochondrial genomes of 22 species from three subfamilies in the Sphingidae were sequenced, assembled, and annotated. Eight diurnal hawkmoths were included, of which six were newly sequenced (, , , , , and ) and two were previously published ( and ). The mitochondrial genomes of these eight diurnal hawkmoths were comparatively analyzed in terms of sequence length, nucleotide composition, relative synonymous codon usage, non-synonymous/synonymous substitution ratio, gene spacing, and repeat sequences.

The complete chloroplast genome of (Solanaceae), the wild eggplant.

is a critical wild eggplant resource with resistance to many serious diseases that affect eggplant production. In this study, the chloroplast genome of was successfully sequenced using Illumina high-throughput sequencing technology. The length of the complete chloroplast genome is 155,771 bp, and its GC content is 37.

The Effects of Different Processing Methods on the Levels of Biogenic Amines in Zijuan Tea.

This study aimed to evaluate the effects of processing methods on the content of biogenic amines in Zijuan tea by using derivatization and hot trichloroacetic acid extraction with HPLC-UV. The results showed that the most abundant biogenic amine in the original leaves was butylamine, followed by ethylamine, methylamine, 1,7-diaminoheptane, histamine, tyramine, and 2-phenethylamine. However, during the process of producing green tea, white tea, and black tea, the content of ethylamine increased sharply, which directly led to their total contents of biogenic amines increasing by 184.

A new species of Rhodambulyx Mell, 1939 (Lepidoptera: Sphingidae) from Southwest Chongqing, China.

A new species of the genus Rhodambulyx Mell, 1939, Rhodambulyx xinyuae sp. nov., is described from Simianshan Nature Reserve in Southwest Chongqing, China.