Anther dehiscence releases pollen and therefore is a key event in plant sexual reproduction. Although anther dehiscence has been intensively studied in some plants, such as Arabidopsis thaliana and rice (Oryza sativa), the molecular mechanism of anther dehiscence in eggplant (Solanum melongena) is largely unknown. To provide insight into this mechanism, we used RNA-sequencing (RNA-seq) to analyze the transcriptomic profiles of one natural male-fertile line (F142) and two male-sterile lines (S12 and S13). We assembled 88,414 unigenes and identified 3446 differentially expressed genes (DEGs). GO and KEGG analysis indicated that these DEGs were mainly involved in "metabolic process", "catalytic activity", "biosynthesis of amino acids", and "carbon metabolism". The present study provides comprehensive transcriptomic profiles of eggplants that do and do not undergo anther dehiscence, and identifies a number of genes and pathways associated with anther dehiscence. The information deepens our understanding of the molecular mechanisms of anther dehiscence in eggplant.
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http://dx.doi.org/10.1016/j.ygeno.2020.12.032 | DOI Listing |
Plant Physiol Biochem
November 2024
Biodiversity Research Institute (IMIB), University of Oviedo - CSIC - Principality of Asturias, E-33600, Mieres, Spain.
Lipid metabolism may play a critical role in fueling seed germination, but the knowledge of lipid metabolism during germination is still ambiguous. Here, we hypothesize that gibberellic acid (GA) promotes germination by means of enhancing lipid mobilization in Chinese pistachio (Pistacia chinensis Bunge), a species belonging to Anacardiaceae with high oil content in its seeds. A multi-omics approach has been applied to measure lipid mobilization during seed germination, and to identify the key regulators involved in GA-mediated lipid metabolism.
View Article and Find Full Text PDFPlant Physiol Biochem
December 2024
Instituto de Investigaciones Biológicas, IIB-CONICET-Universidad Nacional de Mar Del Plata, Mar Del Plata, Buenos Aires, Argentina. Electronic address:
Vacuoleless Gametophytes (VLG) is a DC1 domain protein that was initially characterized as essential for early female and male gametophytes development in Arabidopsis. However, VLG expression was also detected in stamens, pistils and other sporophytic tissues, implying a broader role for this protein. As homozygous insertional VLG lines resulted unviable, we generated Arabidopsis amiRNA VLG knock-down plants to study the role of VLG in sporophyte development.
View Article and Find Full Text PDFTheor Appl Genet
December 2024
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Agricultural College, Guangxi University, Nanning, 530005, China.
Physiol Plant
November 2024
College of Forestry, Shenyang Agricultural University, Shenyang, China.
Prunus sibirica is an economically important forest tree with great development prospects. To study the mechanisms of male sterile P. sibirica, we compared the phenotypic, cytological, and physiological characteristics of male sterile clone 1 with those of male fertile clone 60.
View Article and Find Full Text PDFPlant Cell Rep
November 2024
Shandong Key Laboratory of Bulk Open-Field Vegetable Breeding, Ministry of Agriculture and Rural Affairs Key Laboratory of Huang Huai Protected Horticulture Engineering, Institute of Vegetables, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
Constitutive expression of cucumber CsACS2 in Arabidopsis disrupts anther dehiscence and male fertility via ethylene signaling and DNA methylation, revealing new avenues for enhancing crop reproductive traits. The cucumber gene CsACS2, encoding ACC (1-aminocyclopropane-1-carboxylic acid) synthase, plays a pivotal role in ethylene biosynthesis and sex determination. This study investigates the effects of constitutive CsACS2 expression in Arabidopsis thaliana on anther development and male fertility.
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