Molecular breeding in Brassica for salt tolerance: importance of microsatellite (SSR) markers for molecular breeding in Brassica

Kumar, Manu; Choi, Juyoung; Kumari, Nisha; Pareek, Ashwani; Kim, Seong Ryong

doi:10.3389/fpls.2015.00688

Cited by 48 publications

(32 citation statements)

References 149 publications

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“…According to the FAOs (Food and Agriculture Organization) 2008 report, approximately 800 million hectares of land around the world are affected by salinity [109]. High salinity affects plants in several ways: the alteration of metabolic processes, membrane disorders, irregular cell division and expansion, decreased photosynthetic activity and protein synthesis, increased ion toxicity, and enzymatic disorders [110].…”

Section: Salinity Stressmentioning

confidence: 99%

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Transgenic Breeding Approaches for Improving Abiotic Stress Tolerance: Recent Progress and Future Perspectives

Anwar

Kim

2020

IJMS

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The recent rapid climate changes and increasing global population have led to an increased incidence of abiotic stress and decreased crop productivity. Environmental stresses, such as temperature, drought, nutrient deficiency, salinity, and heavy metal stresses, are major challenges for agriculture, and they lead to a significant reduction in crop growth and productivity. Abiotic stress is a very complex phenomenon, involving a variety of physiological and biochemical changes in plant cells. Plants exposed to abiotic stress exhibit enhanced levels of ROS (reactive oxygen species), which are highly reactive and toxic and affect the biosynthesis of chlorophyll, photosynthetic capacity, and carbohydrate, protein, lipid, and antioxidant enzyme activities. Transgenic breeding offers a suitable alternative to conventional breeding to achieve plant genetic improvements. Over the last two decades, genetic engineering/transgenic breeding techniques demonstrated remarkable developments in manipulations of the genes for the induction of desired characteristics into transgenic plants. Transgenic approaches provide us with access to identify the candidate genes, miRNAs, and transcription factors (TFs) that are involved in specific plant processes, thus enabling an integrated knowledge of the molecular and physiological mechanisms influencing the plant tolerance and productivity. The accuracy and precision of this phenomenon assures great success in the future of plant improvements. Hence, transgenic breeding has proven to be a promising tool for abiotic stress improvement in crops. This review focuses on the potential and successful applications, recent progress, and future perspectives of transgenic breeding for improving abiotic stress tolerance and productivity in plants.

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Section: Salinity Stressmentioning

confidence: 99%

“…Plants respond to salt stress through a series of mechanisms, such as Na + /K + homeostasis and Na + exclusion. Additionally, the excess amount of these Na + and Cl − ions in plant cells leads to the overproduction of ROS, which is highly toxic and causes oxidative stress [103,110].…”

Section: Salinity Stressmentioning

confidence: 99%

Transgenic Breeding Approaches for Improving Abiotic Stress Tolerance: Recent Progress and Future Perspectives

Anwar

Kim

2020

IJMS

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“…Brassica coenospecies, in particular, have been bestowed with nearly 100 species and genera of wild and weedy relatives, serving as a rich reservoir of genes conferring many agriculturally and economically important traits. These species can be effectively utilized to introduce the important traits to cultivated species as well as development of potential wide hybrids (Kumar et al, 2015). Brassica rapa L., is one of the most economically important oil crops.…”

Section: Introductionmentioning

confidence: 99%

Integration of cytological and molecular analysis to confirm a hybridity in F1 Brassica progeny

Niemann¹,

Olender²,

Weigt³

et al. 2018

PAK.J.BOT.

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In Brassica, interspecific hybridization is a potential and useful method for transferring valuable traits between species of commercial interest. In the previous experiments successful interspecific hybrids were obtained through hybridization between chosen rapeseed cultivars (Brassica napus L.) and Brassica rapa genotypes for transferring clubroot resistance from wild species into cultivated background. In the presented research morphological, cytological and simple sequence repeats (SSR)based molecular analyses were carried out to confirm the hybrid nature of the F1 plants. This paper evidences for a successful creation of twenty three F1 interspecific hybrids where six out of eleven cross combinations were confirmed as fertile. The obtained results have shown that analyzed morphological characters of F1 hybrids were intermediate as compared to those of both parental genotypes. Furthermore, in pollen mother cells (PMCs) of the F1 hybrids abnormalities like univalent, lagging chromosomes and disorders in synchronization were observed in meiosis. Generally, the abnormalities in meiosis occurred in most of the tested genotypes with the mean frequency of 63.8%. Among tested SSR primers, Na10-A08 was found to reveal highly polymorphic bands in hybrids. As a result, 41.1% of the investigated plants were confirmed as true hybrids.

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“…Finally, Kumar et al (2015) reviewed the molecular breeding of canola to salt stress with the main focus on molecular markers. However, very little attention has been paid to components of the salinity response molecular network -essential for engineering salt-tolerant canola.…”

Section: Introductionmentioning

confidence: 99%

Peer Review #1 of "Molecular response of canola to salt stress: insights on tolerance mechanisms (v0.1)"

Jing¹

2018

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Canola (Brassica napus L.) is widely cultivated around the world for the production of edible oils and biodiesel fuel. Despite many canola varieties being described as 'salttolerant', plant yield and growth decline drastically with increasing salinity. Although many studies have resulted in better understanding of the many important salt-response mechanisms that control salt signaling in plants, detoxification of ions, and synthesis of protective metabolites, the engineering of salt-tolerant crops has only progressed slowly. Genetic engineering has been considered as an efficient method for improving the salt tolerance of canola but there are many unknown or little-known aspects regarding canola response to salinity stress at the cellular and molecular level. In order to develop highly salt-tolerant canola, it is essential to improve knowledge of the salt-tolerance mechanisms, especially the key components of the plant salt-response network. In this review, we focus on studies of the molecular response of canola to salinity to unravel the different pieces of the salt response puzzle. The paper includes a comprehensive review of the latest studies, particularly of proteomic and transcriptomic analysis, including the most recently identified canola tolerance components under salt stress, and suggests what researchers should focus on in future studies.

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Molecular breeding in Brassica for salt tolerance: importance of microsatellite (SSR) markers for molecular breeding in Brassica

Cited by 48 publications

References 149 publications

Transgenic Breeding Approaches for Improving Abiotic Stress Tolerance: Recent Progress and Future Perspectives

Transgenic Breeding Approaches for Improving Abiotic Stress Tolerance: Recent Progress and Future Perspectives

Integration of cytological and molecular analysis to confirm a hybridity in F1 Brassica progeny

Peer Review #1 of "Molecular response of canola to salt stress: insights on tolerance mechanisms (v0.1)"

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