scholarly journals Soybean LEC2 Regulates Subsets of Genes Involved in Controlling the Biosynthesis and Catabolism of Seed Storage Substances and Seed Development

2017 ◽  
Vol 8 ◽  
Author(s):  
Sehrish Manan ◽  
Muhammad Z. Ahmad ◽  
Gaoyang Zhang ◽  
Beibei Chen ◽  
Basir U. Haq ◽  
...  
Keyword(s):  
Seed Development ◽  
Seed Storage

scholarly journals Lack of Globulin Synthesis during Seed Development Alters Accumulation of Seed Storage Proteins in Rice

2015 ◽  
Vol 16 (12) ◽  
pp. 14717-14736 ◽  
Author(s):  
Hye-Jung Lee ◽  
Yeong-Min Jo ◽  
Jong-Yeol Lee ◽  
Sun-Hyung Lim ◽  
Young-Mi Kim
Keyword(s):  
Seed Development ◽  
Storage Proteins ◽  
Seed Storage ◽  
Seed Storage Proteins

scholarly journals Advances in the Identification of Quantitative Trait Loci and Genes Involved in Seed Vigor in Rice

2021 ◽  
Vol 12 ◽  
Author(s):  
Jia Zhao ◽  
Yongqi He ◽  
Shuilai Huang ◽  
Zhoufei Wang
Keyword(s):  
Quantitative Trait Loci ◽  
Seed Development ◽  
Quantitative Trait ◽  
Seedling Emergence ◽  
Seed Storage ◽  
Complex Trait ◽  
Regulatory Genes ◽  
Seed Vigor ◽  
Rice Seed ◽  
Trait Loci

Seed vigor is a complex trait, including the seed germination, seedling emergence, and growth, as well as seed storability and stress tolerance, which is important for direct seeding in rice. Seed vigor is established during seed development, and its level is decreased during seed storage. Seed vigor is influenced by genetic and environmental factors during seed development, storage, and germination stages. A lot of factors, such as nutrient reserves, seed dying, seed dormancy, seed deterioration, stress conditions, and seed treatments, will influence seed vigor during seed development to germination stages. This review highlights the current advances on the identification of quantitative trait loci (QTLs) and regulatory genes involved in seed vigor at seed development, storage, and germination stages in rice. These identified QTLs and regulatory genes will contribute to the improvement of seed vigor by breeding, biotechnological, and treatment approaches.

scholarly journals LEAFY COTYLEDON 2: A Regulatory Factor of Plant Growth and Seed Development

Genes ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1896
Author(s):  
Boling Liu ◽  
Ge Sun ◽  
Changju Liu ◽  
Shijuan Liu
Keyword(s):  
Transcription Factor ◽  
Plant Growth ◽  
Seed Development ◽  
Molecular Mechanisms ◽  
Seed Storage Protein ◽  
Lateral Roots ◽  
Regulation Of Gene Expression ◽  
Seed Storage ◽  
Biological Processes ◽  
Regulatory Effects

Transcription factors are key molecules in the regulation of gene expression in all organisms. The transcription factor LEAFY COTYLEDON 2 (LEC2), which belongs to the DNA-binding protein family, contains a B3 domain. The transcription factor is involved in the regulation of important plant biological processes such as embryogenesis, somatic embryo formation, seed storage protein synthesis, fatty acid metabolism, and other important biological processes. Recent studies have shown that LEC2 regulates the formation of lateral roots and influences the embryonic resetting of the parental vernalization state. The orthologs of LEC2 and their regulatory effects have also been identified in some crops; however, their regulatory mechanism requires further investigation. Here, we summarize the most recent findings concerning the effects of LEC2 on plant growth and seed development. In addition, we discuss the potential molecular mechanisms of the action of the LEC2 gene during plant development.

scholarly journals Seed quality in rice is most sensitive to drought and high temperature in early seed development

2019 ◽  
Vol 29 (4) ◽  
pp. 238-249
Author(s):  
Siti M. Abdul Rahman ◽  
Richard H. Ellis
Keyword(s):  
High Temperature ◽  
Seed Development ◽  
Seed Quality ◽  
Indica Rice ◽  
Seed Storage ◽  
Rapid Decline ◽  
Quality Development ◽  
In Planta ◽  
Seed Moisture Content ◽  
Substantial Decline

AbstractDrought and high temperature each damage rice (Oryza sativa L.) crops. Their effect during seed development and maturation on subsequent seed quality development was investigated in Japonica (cv. Gleva) and Indica (cv. Aeron 1) plants grown in controlled environments subjected to drought (irrigation ended) and/or brief high temperature (HT; 3 days at 40/30°C). Ending irrigation early in cv. Gleva (7 or 14 days after anthesis, DAA) resulted in earlier plant senescence, more rapid decline in seed moisture content, more rapid seed quality development initially, but substantial decline later in planta in the ability of seeds to germinate normally. Subsequent seed storage longevity amongst later harvests was greatest with no drought because with drought it declined from 16 or 22 DAA onwards in planta, 9 or 8 days after irrigation ended, respectively. Later drought (14 or 28 DAA) also reduced seed longevity at harvest maturity (42 DAA). Well-irrigated plants provided poorer longevity the earlier during seed development they were exposed to HT (greatest at anthesis and histodifferentiation; no effect during seed maturation). Combining drought and HT damaged seed quality more than each stress alone, and more so in the Japonica cv. Gleva than the Indica cv. Aeron 1. Overall, the earlier plant drought occurred the greater the damage to subsequent seed quality; seed quality was most vulnerable to damage from plant drought and HT at anthesis and histodifferentiation; and seed quality of the Indica rice was more resilient to damage from these stresses than the Japonica.

Dissecting the nutrient partitioning mechanism in rice grain using spatially resolved gene expression profiling

2020 ◽  
Author(s):  
Hasthi Ram ◽  
Anmol Singh ◽  
Megha Katoch ◽  
Ravneet Kaur ◽  
Shaswati Sardar ◽  
...  
Keyword(s):  
Gene Expression ◽  
Seed Development ◽  
Transcriptional Control ◽  
Seed Storage Protein ◽  
Seed Storage ◽  
Grain Filling ◽  
Protein Accumulation ◽  
Rice Grain ◽  
Nutrient Partitioning ◽  
Expression Pathways

Abstract Rice, a staple food worldwide, contains varying amount of nutrients in different grain tissues. The underlying molecular mechanism of such distinct nutrient partitioning remains poorly-investigated. Here, an optimized rapid Laser Capture Microdissection (LCM) approach was used to individually collect pericarp, aleurone, embryo and endosperm from 10 Days After Fertilization (DAF) old grains. Subsequent RNA-Seq analysis in these tissues have identified 7760 differentially expressed genes (DEGs). Analysis of promoter sequences of tissue specific genes identified many known and novel cis-elements important for grain filling and seed development. Using identified DEGs, comprehensive spatial gene expression pathways were built for spatial accumulation of starch, proteins, lipids and iron. The extensive transcriptomic analysis has provided many novel insights about nutrient partitioning mechanisms, for instance, it reveals a gradient in Seed Storage Protein accumulation across the analysed four tissue-types. It further reveals that partitioning of various minerals, such as iron, is most likely regulated through transcriptional control of their transporters. In addition, the extensive analysis of this study is presented as an interactive online tool (https://biogeek.shinyapps.io/DEGs/) that provides a much-needed resource for future functional genomics studies aimed to improve grain quality and seed development.

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