Global transcription and metabolic profiles of five tissues in pepper fruits.

Studying the regulatory mechanisms in different tissues of pepper is crucial for understanding organ formation, growth, and development. However, relevant studies are far from sufficient. In the current study, the stipe, calyx, pericarp, placenta, and seed of ripe pepper were sampled, and metabolites were determined by the untargeted metabolomics method.

Transcriptional Comparison Reveals Differential Resistance Mechanisms between CMV-Resistant PBC688 and CMV-Susceptible G29.

The (CMV) presents a significant threat to pepper cultivation worldwide, leading to substantial yield losses. We conducted a transcriptional comparative study between CMV-resistant (PBC688) and -susceptible (G29) pepper accessions to understand the mechanisms of CMV resistance. PBC688 effectively suppressed CMV proliferation and spread, while G29 exhibited higher viral accumulation.

Genetic diversity between local landraces and current breeding lines of pepper in China.

Based on 22 qualitative traits, 13 quantitative traits, and 27 molecular markers (26 SSR and 1 InDel), in the current study we compared the diversity and population structure of 94 local landraces and 85 current breeding lines of pepper in China. The results showed that the Shannon Diversity indices of 9 qualitative traits and 8 quantitative traits in current breeding lines were greater than those of landraces, of which 11 were fruit organ-related traits. Compared with current breeding lines, the mean values of Gene Diversity index and Polymorphism Information content of local landraces were higher by 0.

Molecular characterization of SUT Gene Family in Solanaceae with emphasis on expression analysis of pepper genes during development and stresses.

Sucrose, an essential carbohydrate, is transported from source to sink organs in the phloem and is involved in a variety of physiological and metabolic processes in plants. Sucrose transporter proteins (SUTs) may play significant parts in the phloem loading and unloading of sucrose. In our study, the gene family was identified in four Solanaceae species (, and ) and other 14 plant species ranged from lower and high plants.

Evolutionary Origin of the Carotenoid Cleavage Oxygenase Family in Plants and Expression of Pepper Genes in Response to Abiotic Stresses.

Plant carotenoid cleavage oxygenase (CCO) is an enzyme that catalyzes the synthesis of carotenoids and participates in many important physiological functions. The plant CCOs exist in two forms, namely carotenoid cleavage dioxygenase (CCD) and nine- epoxide carotenoid dioxygenase (NCED). Although studies have shown that this gene family has been identified in many species, such as , grape, and tomato, the evolutionary origin of the CCO family and the expression pattern of pepper genes in response to HO and other abiotic stresses are still unclear.

Development and Application of InDel Markers for Capsicum spp. Based on Whole-Genome Re-Sequencing.

Genome-wide identification of Insertion/Deletion polymorphisms (InDels) in Capsicum spp. was performed through comparing whole-genome re-sequencing data from two Capsicum accessions, C. annuum cv.

Genome-Wide Analyses of the NAC Transcription Factor Gene Family in Pepper (Capsicum annuum L.): Chromosome Location, Phylogeny, Structure, Expression Patterns, Cis-Elements in the Promoter, and Interaction Network.

The NAM, ATAF1/2, and CUC2 (NAC) transcription factors form a large plant-specific gene family, which is involved in the regulation of tissue development in response to biotic and abiotic stress. To date, there have been no comprehensive studies investigating chromosomal location, gene structure, gene phylogeny, conserved motifs, or gene expression of NAC in pepper ( L.).

Putative WRKYs associated with regulation of fruit ripening revealed by detailed expression analysis of the WRKY gene family in pepper.

WRKY transcription factors play important roles in plant development and stress responses. Here, global expression patterns of pepper CaWRKYs in various tissues as well as response to environmental stresses and plant hormones were systematically analyzed, with an emphasis on fruit ripening. The results showed that most CaWRKYs were expressed in at least two of the tissues tested.

Rapid identification of QTLs underlying resistance to Cucumber mosaic virus in pepper (Capsicum frutescens).

Next-generation sequencing enabled a fast discovery of QTLs controlling CMV resistant in pepper. The gene CA02g19570 as a possible candidate gene of qCmr2.1 was identified for resistance to CMV in pepper.

Non-carcinogenic risk assessment of eight metals in the source groundwater of Shaying River basin.

Because of serious pollution of river water, people living along the Shaying River in China exploit the groundwater as a drinking water resource. Various pollutants including heavy metals have been detected in the groundwater at depths up to 200 m. To perform a non-carcinogenic risk assessment, the hazard index (HI) was determined for several metals present in the groundwater.

Primary trisomics obtained from autotriploid by diploid reciprocal crosses in cucumber.

To promote cytogenetical studies on cucumber (Cucumis sativus L., 2n = 2x = 14), the reciprocal crosses were made between autotriploid and diploid for selecting the primary trisomics. Meanwhile, chromosome behavior during meiosis in autotriploid cucumber was investigated to look for cytological evidences for origin of primary trisomics.