Transcriptome Analysis and Metabolic Profiling Reveal the Key Regulatory Pathways in Drought Stress Responses and Recovery in Tomatoes.

Drought stress is a major abiotic factor affecting tomato production and fruit quality. However, the genes and metabolites associated with tomato responses to water deficiency and rehydration are poorly characterized. To identify the functional genes and key metabolic pathways underlying tomato responses to drought stress and recovery, drought-susceptible and drought-tolerant inbred lines underwent transcriptomic and metabolomic analyses.

OBV (obscure vein), a CH zinc finger transcription factor, positively regulates chloroplast development and bundle sheath extension formation in tomato (Solanum lycopersicum) leaf veins.

Leaf veins play an important role in plant growth and development, and the bundle sheath (BS) is believed to greatly improve the photosynthetic efficiency of C plants. The OBV mutation in tomato (Solanum lycopersicum) results in dark veins and has been used widely in processing tomato varieties. However, physiological performance has difficulty explaining fitness in production.

Fine Mapping of the Gene Conferring Resistance to Late Blight () in Tomato.

Late blight is a devastating tomato disease. Breeding new varieties with multiple resistance () genes is highly effective for preventing late blight. The gene mediates resistance to race T in tomato.

Is a Putative Candidate Gene for , a Major-Effect Quantitative Trait Locus Controlling Tomato Plant Height.

Plant height is an important agronomic trait in crops. Several genes underlying tomato () plant height mutants have been cloned. However, few quantitative trait genes for plant height have been identified in tomato.

Exploration of resistance to Phelipanche aegyptiaca in tomato.

Background: Cultivated tomatoes are highly susceptible to the destructive parasite Phelipanche aegyptiaca. Wild relatives show the potential resistance for genetic improvement. However, their genetic and molecular mechanisms are still unknown.

A putative bHLH transcription factor is a candidate gene for , a locus affecting pollen and tapetum development in tomato.

The tomato () () mutant has been used in hybrid seed breeding programs largely because it produces no pollen and has exserted stigmas. In this study, histological examination of anthers revealed dysfunctional pollen and tapetum development in the mutant. The locus was fine mapped to a 28.

Identification and Characterization of () Gene in Tomato ().

Internode length is an important agronomic trait affecting plant architecture and crop yield. However, few genes for internode elongation have been identified in tomato. In this study, we characterized an elongated internode inbred line P502, which is a natural mutant of the tomato cultivar 05T606.

Normal and Abortive Buds Transcriptomic Profiling of Cytoplasmic Male Sterile Line and Its Maintainer.

Bud abortion is the main factor affecting hybrid seeds' yield during broccoli cross breeding when using cytoplasmic male sterile ( CMS) lines. However, the genes associated with bud abortion are poorly understood. We applied RNA sequencing to analyze the transcriptomes of normal and abortive buds of broccoli maintainer and CMS lines.

QTL-seq for rapid identification of candidate genes for flowering time in broccoli × cabbage.

A major QTL controlling early flowering in broccoli × cabbage was identified by marker analysis and next-generation sequencing, corresponding to GRF6 gene conditioning flowering time in Arabidopsis. Flowering is an important agronomic trait for hybrid production in broccoli and cabbage, but the genetic mechanism underlying this process is unknown. In this study, segregation analysis with BCP1, BCP2, F, and F populations derived from a cross between two inbred lines "195" (late-flowering) and "93219" (early flowering) suggested that flowering time is a quantitative trait.

Detection of the Diversity of Cytoplasmic Male Sterility Sources in Broccoli (Brassica Oleracea var. Italica) Using Mitochondrial Markers.

Broccoli (Brassica oleracea var. italica) is an important commercial vegetable crop. As part of an efficient pollination system, cytoplasmic male sterility (CMS) has been widely used for broccoli hybrid production.

Organelle Simple Sequence Repeat Markers Help to Distinguish Carpelloid Stamen and Normal Cytoplasmic Male Sterile Sources in Broccoli.

We previously discovered carpelloid stamens when breeding cytoplasmic male sterile lines in broccoli (Brassica oleracea var. italica). In this study, hybrids and multiple backcrosses were produced from different cytoplasmic male sterile carpelloid stamen sources and maintainer lines.