A Class II KNOX Gene, KNAT7-1, Regulates Physical Seed Dormancy in Mungbean [Vigna radiata (L.) Wilczek]

Laosatit, Kularb; Amkul, Kitiya; Yimram, Tarika; Chen, Jingbin; Lin, Yun; Yuan, Xuesong; Wang, Lixia; Chen, Xin; Somta, Prakit

doi:10.3389/fpls.2022.852373

Cited by 18 publications

(14 citation statements)

References 47 publications

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“…It was located between SSR markers cp05137 and CEDG074b. Laosatit et al (2022) speculated that HsA and Sdwa5.1.1+ are the same loci and finely mapped Sdwa5.1.1+ using ACC41 as the source of seed dormancy; they found that the cp05137-CEDG074b interval contained two QTLs for dormancy, Sdwa5.1.1+ and Sdwa5.1.2+, with more or less equal effects.…”

Section: Seed Dormancymentioning

confidence: 99%

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Thirty Years of Mungbean Genome Research: Where Do We Stand and What Have We Learned?

et al. 2022

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Mungbean is a socioeconomically important legume crop in Asia that is currently in high demand by consumers and industries both as dried beans and in plant-based protein foods. Marker-assisted and genomics-assisted breeding are promising approaches to efficiently and rapidly develop new cultivars with improved yield, quality, and resistance to biotic and abiotic stresses. Although mungbean was at the forefront of research at the dawn of the plant genomics era 30 years ago, the crop is a “slow runner” in genome research due to limited genomic resources, especially DNA markers. Significant progress in mungbean genome research was achieved only within the last 10 years, notably after the release of the VC1973A draft reference genome constructed using next-generation sequencing technology, which enabled fast and efficient DNA marker development, gene mapping, and identification of candidate genes for complex traits. Resistance to biotic stresses has dominated mungbean genome research to date; however, research is on the rise. In this study, we provide an overview of the past progress and current status of mungbean genomics research. We also discuss and evaluate some research results to provide a better understanding of mungbean genomics.

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Section: Seed Dormancymentioning

confidence: 99%

“…At the Sdwa5.1.2+ region, containing five genes, Vradi07g10480, encoding calmodulin-like (CML) protein 1, is likely the gene controlling seed dormancy (Laosatit et al, 2022). Calmodulin (CaM) and CML proteins have been shown to be involved in the ABA-induced inhibition of seed germination and seedling growth.…”

Section: Seed Dormancymentioning

confidence: 99%

Thirty Years of Mungbean Genome Research: Where Do We Stand and What Have We Learned?

et al. 2022

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“…In Vigna vexillate , a major QTL, i.e., qSdwa3.1 , positively affects seed water absorption ( Amkul et al, 2020 ). KNAT7-1 , a class II KNOX gene, is identified to affect seed dormancy in green gram ( Laosatit et al, 2022 ). In green gram seeds, a high level of α-amylase activity is found positively associated with seed dormancy ( Lamichaney et al, 2018 ).…”

Section: Genetics Of Domestication-related Traits In Legumesmentioning

confidence: 99%

Unraveling Origin, History, Genetics, and Strategies for Accelerated Domestication and Diversification of Food Legumes

et al. 2022

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Domestication is a dynamic and ongoing process of transforming wild species into cultivated species by selecting desirable agricultural plant features to meet human needs such as taste, yield, storage, and cultivation practices. Human plant domestication began in the Fertile Crescent around 12,000 years ago and spread throughout the world, including China, Mesoamerica, the Andes and Near Oceania, Sub-Saharan Africa, and eastern North America. Indus valley civilizations have played a great role in the domestication of grain legumes. Crops, such as pigeon pea, black gram, green gram, lablab bean, moth bean, and horse gram, originated in the Indian subcontinent, and Neolithic archaeological records indicate that these crops were first domesticated by early civilizations in the region. The domestication and evolution of wild ancestors into today’s elite cultivars are important contributors to global food supply and agricultural crop improvement. In addition, food legumes contribute to food security by protecting human health and minimize climate change impacts. During the domestication process, legume crop species have undergone a severe genetic diversity loss, and only a very narrow range of variability is retained in the cultivars. Further reduction in genetic diversity occurred during seed dispersal and movement across the continents. In general, only a few traits, such as shattering resistance, seed dormancy loss, stem growth behavior, flowering–maturity period, and yield traits, have prominence in the domestication process across the species. Thus, identification and knowledge of domestication responsive loci were often useful in accelerating new species’ domestication. The genes and metabolic pathways responsible for the significant alterations that occurred as an outcome of domestication might aid in the quick domestication of novel crops. Further, recent advances in “omics” sciences, gene-editing technologies, and functional analysis will accelerate the domestication and crop improvement of new crop species without losing much genetic diversity. In this review, we have discussed about the origin, center of diversity, and seed movement of major food legumes, which will be useful in the exploration and utilization of genetic diversity in crop improvement. Further, we have discussed about the major genes/QTLs associated with the domestication syndrome in pulse crops and the future strategies to improve the food legume crops.

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“…Transferase complex subunit pseudogene (TCP) has been shown to be a key player in the biosynthesis of lipids and phytohormones, such as BRs and jasmonate (JA), and to control seed germination [18][19][20]. Loss of function of knotted-related homeobox (KNOX) resulting in reduced 18:2ω-hydroxy fatty acid in the seed cutin alters cuticle layer permeability and has been shown to help regulate physical seed dormancy in M. truncatula L. and mungbean (V igna radiata [L.] Wilczek) [21]. The interaction between KNOX and growth-regulating factor (GRF)family TFs is conserved in dicotyledons, and OsGRF3 and OsGRF10 have a repressive effect on OsKN2 in rice, resulting in reductions in plant internodes and increases in adventitious root numbers at nodes [22].…”

Section: Introductionmentioning

confidence: 99%

Characterizing seed dormancy in Epimedium brevicornu Maxim.: Development of novel chill models and determination of dormancy release mechanisms by transcriptomics

Xiang

Dong

et al. 2023

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Purpose: Epimedium brevicornu Maxim. is a perennial persistent C3 plant of the genus Epimedium Linn. in the family Berberaceae that exhibits severe physiological and morphological seed dormancy. We placed mature E.brevicornu seeds under nine stratification treatment conditions and explored the mechanisms of influence by combining seed embryo growth status assessment with related metabolic pathways and gene co-expression analysis. Results: We identified 3.9 °C as the optimum cold-stratification temperature of E.brevicornu seeds via a chilling unit (CU) model. The best treatment was variable-temperature stratification (10/20 °C, 12/12 h) for 120 d followed by low-temperature stratification (4 °C) for 90 d. A total of 63801 differentially expressed genes were annotated to 2587 transcription factors (TFs) in 17 clusters in two comparisons. Genes specifically highly expressed in the dormancy release treatment group were significantly enriched in embryo development ending in seed dormancy and fatty acid degradation, indicating the importance of these two processes. Coexpression analysis implied that the TF GRF had the most reciprocal relationships with genes, and multiple interactions centered on zf-HD and YABBY as well as on MYB, GRF, and TCP were observed. Conclusion: In this study, analyses of plant hormone signal pathways and fatty acid degradation pathways revealed changes in key genes during the dor- mancy release of E.brevicornu seeds, providing evidence for the filtering of E.brevicornu seed dormancy-related genes.

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A Class II KNOX Gene, KNAT7-1, Regulates Physical Seed Dormancy in Mungbean [Vigna radiata (L.) Wilczek]

Cited by 18 publications

References 47 publications

Thirty Years of Mungbean Genome Research: Where Do We Stand and What Have We Learned?

Thirty Years of Mungbean Genome Research: Where Do We Stand and What Have We Learned?

Unraveling Origin, History, Genetics, and Strategies for Accelerated Domestication and Diversification of Food Legumes

Characterizing seed dormancy in Epimedium brevicornu Maxim.: Development of novel chill models and determination of dormancy release mechanisms by transcriptomics

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