Emerging Avenues for Utilization of Exotic Germplasm

Wang, C. L.; Hu, Songlin; Gardner, C; Lübberstedt, Thomas

doi:10.1016/j.tplants.2017.04.002

Cited by 108 publications

(68 citation statements)

References 86 publications

(92 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For instance, it can be challenging to rigorously phenotype highly diverse and undomesticated germplasm panels. Limited genetic and genomic resources for these germplasms as well as difficulties in effectively transferring beneficial alleles into elite varieties have also proved to be significant obstacles (Mayes et al ., ; Wang et al ., ). Nevertheless, the recent technological breakthroughs in the fields of phenotyping, DNA sequencing and molecular‐assisted breeding are increasingly facilitating the use of these genetic resources for crop improvement.…”

Section: Harnessing the Genetic Diversity Of Exotic Germplasmmentioning

confidence: 97%

“…Several sources of genetic variation are available to complement the genetic paucity of modern elite cultivars. Genetic diversity generated artificially through mutagenesis has proven a valuable resource for various crop species, as variants can be directly produced in commercial germplasm (Caldwell et al ., ; Mba, ; Nikam et al ., ; Gulfishan et al ., ; Çelik and Atak, ; Pando and Deza, ; Wang et al ., ; Tu Anh et al ., ). However, given that salt tolerance is most likely to arise from the concerted effects of numerous mechanisms, the potential to artificially create salt tolerant variants is surely limited.…”

Section: Harnessing the Genetic Diversity Of Exotic Germplasmmentioning

confidence: 99%

See 1 more Smart Citation

Salt stress under the scalpel – dissecting the genetics of salt tolerance

et al. 2019

View full text Add to dashboard Cite

Summary Salt stress limits the productivity of crops grown under saline conditions, leading to substantial losses of yield in saline soils and under brackish and saline irrigation. Salt tolerant crops could alleviate these losses while both increasing irrigation opportunities and reducing agricultural demands on dwindling freshwater resources. However, despite significant efforts, progress towards this goal has been limited, largely because of the genetic complexity of salt tolerance for agronomically important yield‐related traits. Consequently, the focus is shifting to the study of traits that contribute to overall tolerance, thus breaking down salt tolerance into components that are more genetically tractable. Greater consideration of the plasticity of salt tolerance mechanisms throughout development and across environmental conditions furthers this dissection. The demand for more sophisticated and comprehensive methodologies is being met by parallel advances in high‐throughput phenotyping and sequencing technologies that are enabling the multivariate characterisation of vast germplasm resources. Alongside steady improvements in statistical genetics models, forward genetics approaches for elucidating salt tolerance mechanisms are gaining momentum. Subsequent quantitative trait locus and gene validation has also become more accessible, most recently through advanced techniques in molecular biology and genomic analysis, facilitating the translation of findings to the field. Besides fuelling the improvement of established crop species, this progress also facilitates the domestication of naturally salt tolerant orphan crops. Taken together, these advances herald a promising era of discovery for research into the genetics of salt tolerance in plants.

show abstract

Section: Harnessing the Genetic Diversity Of Exotic Germplasmmentioning

confidence: 97%

Section: Harnessing the Genetic Diversity Of Exotic Germplasmmentioning

confidence: 99%

Salt stress under the scalpel – dissecting the genetics of salt tolerance

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Further, traditional methods to enhance genetic and phenotypic variation in crops has relied on inter-crossing with wild relatives to introduce "exotic" allelic diversity, creating novel alleles by random mutagenesis, and genetic engineering. These approaches are not always guaranteed to produce agronomically meaningful traits [19]. Conversely, targeted mutagenesis technology, which combines clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated protein 9 (Cas9), popularly recognised as CRISPR/Cas9, can generate desirable mutations by inducing precise gene editing through efficient double strand DNA breaks (DSBs) at a target site.…”

Section: Resources In Plant Breedingmentioning

confidence: 99%

Emerging Advanced Technologies to Mitigate the Impact of Climate Change in Africa

Ribeiro

Rodriguez

2020

Plants

View full text Add to dashboard Cite

Agriculture remains critical to Africa’s socioeconomic development, employing 65% of the work force and contributing 32% of GDP (Gross Domestic Product). Low productivity, which characterises food production in many Africa countries, remains a major concern. Compounded by the effects of climate change and lack of technical expertise, recent reports suggest that the impacts of climate change on agriculture and food systems in African countries may have further-reaching consequences than previously anticipated. Thus, it has become imperative that African scientists and farmers adopt new technologies which facilitate their research and provide smart agricultural solutions to mitigating current and future climate change-related challenges. Advanced technologies have been developed across the globe to facilitate adaptation to climate change in the agriculture sector. Clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9), synthetic biology, and genomic selection, among others, constitute examples of some of these technologies. In this work, emerging advanced technologies with the potential to effectively mitigate climate change in Africa are reviewed. The authors show how these technologies can be utilised to enhance knowledge discovery for increased production in a climate change-impacted environment. We conclude that the application of these technologies could empower African scientists to explore agricultural strategies more resilient to the effects of climate change. Additionally, we conclude that support for African scientists from the international community in various forms is necessary to help Africans avoid the full undesirable effects of climate change.

show abstract

“…In current plant breeding programs, reduced levels of genetic variation in elite breeding populations limit breeding progress and the adaptation to rapidly changing environmental conditions. Plant genetic resources stored in large ex situ germplasm collections are an important source of novel, potentially useful genetic variation to achieve these goals (Wang et al 2017a).…”

Section: Introductionmentioning

confidence: 99%

Combining Focused Identification of Germplasm and Core Collection Strategies to Identify Genebank Accessions for Central European Soybean Breeding

Haupt

Schmid

2019

Preprint

View full text Add to dashboard Cite

ABSTRACTEnvironmental adaptation of crops is essential for reliable agricultural production and an important breeding objectives. Genbanks provide genetic variation for the improvement of modern varieties, but the selection of suitable germplasm is frequently impeded by incomplete phenotypic data. We address this bottleneck by combining a Focused Identification of Germplasm Strategy (FIGS) with core collection methodology to select soybean (Glycine max) germplasm for Central European breeding from a collection of >17,000 accessions. By focussing on environmental adaptation to high-latitude cold regions, we selected an ‘environmental precore’ of 3,663 accessions using environmental data and compared the Donor Population of Environments (DPE) in Asia and the Target Population of Environments (TPE) in Central Europe in the present and in 2070. Using SNP genotypes we reduced the precore into two diverse core collections of 183 and 366 of accessions as diversity panels for evaluation in high-latitude cold regions. Tests of genetic differentiation between precore and core collections revealed differentiation signatures in genomic regions that control maturity, and novel candidate loci for environmental adaptation demonstrating the potential of diversity panels for studying environmental adaptation. Objective-driven core collections increase germplasm utilization for abiotic adaptation by breeding for a rapidly changing climate, or de novo adaptation of crop species to expand cultivation ranges.

show abstract

Emerging Avenues for Utilization of Exotic Germplasm

Cited by 108 publications

References 86 publications

Salt stress under the scalpel – dissecting the genetics of salt tolerance

Salt stress under the scalpel – dissecting the genetics of salt tolerance

Emerging Advanced Technologies to Mitigate the Impact of Climate Change in Africa

Combining Focused Identification of Germplasm and Core Collection Strategies to Identify Genebank Accessions for Central European Soybean Breeding

Contact Info

Product

Resources

About