Potential Uses of Wild Germplasms of Grain Legumes for Crop Improvement

Muñoz, Nacira; Liu, Ai-Lin; Kan, L. B.; Li, Man-Wah; Lam, Hon‐Ming

doi:10.3390/ijms18020328

Cited by 60 publications

(39 citation statements)

References 185 publications

(233 reference statements)

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“…Wild soybeans are a potential genetic resource for the improvement of cultivated soybean and aid greatly in exploring alternative production systems. Wild soybeans, as in case of another wild relative of cultivated crop species, contain higher genetic diversity as they had a long time opportunity to evolve and withstand under varied environmental conditions without inference by humans [4,15]. Wild soybeans are interfertile with cultivated soybeans and represent an easily accessible or primary gene pool for soybean improvement [10].…”

Section: Expanding the Gene Pool For Soybean Improvementmentioning

confidence: 99%

“…In order to cope with the global warming led climatic variations and limited water supplies, there is a constant need of crop improvement; the crop potential has been reduced due to domestication, genetic bottlenecks, and artificial selection [2]. To explore more genes and gene families for alternative production systems, crop wild relatives are a rational choice mainly due to limited or no breeding barriers [4]. The wild progenitors of crops are sometimes easily available, but this is not the case for all species as some of the wild species have gone extinct, or in other cases, multiple progenitors contributed to the genome of the domesticated plants, e.g., wheat.…”

mentioning

confidence: 99%

“…On the other hand, the desirable traits including resistance to biotic and abiotic stresses, nutritional values can be incorporated into the current agricultural crop by using conventional and new breeding technologies. This practice is sometimes quite challenging mainly due to linkage drag; however, recent advances in genetics and genomic approaches have expanded our understanding of evolution, linkage, and heredity of complex traits [4][5][6] (Table 1).…”

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confidence: 99%

See 2 more Smart Citations

Wild Soybeans: An Opportunistic Resource for Soybean Improvement

Nawaz¹,

Yang²,

Chung³

2018

Rediscovery of Landraces as a Resource for the Future

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Reduced genetic diversity in cultivated soybean coupled with changing dietary expectations, climate change, and increase in population demands expansion of current gene pool. Wild soybeans are an opportunistic resource and a rational choice to discover novel genes and gene families for alternative crop production systems and to improve soybean. Multiple agronomic traits, lineage-specific genes, and domestication-related traits have been studied in wild soybeans in contrast to cultivated soybeans, and it has been proved that wild soybeans are an essential genomic resource containing unique and useful genetic resources that have been lost during domestication to expand the gene pool in order to improve soybean. Wild soybean is very often a plant of disturbed habitats of Southeast Asia. The vulnerability of these habitats to agriculture systems and urban expansion causes a reduction in the area of distribution and hence the diversity. To capture the wild soybean genetic diversity in its main distribution areas, a unique and comprehensive germplasm collection, characterization, and conservation platform is direly needed. Chung's Wild Legume Germplasm Collection is preserving and maintaining a representative wild soybean germplasm collection guided by the principles of conservation genetics. These wild legumes and particularly wild soybean is a promising genetic resource for soybean breeders.

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Section: Expanding the Gene Pool For Soybean Improvementmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Wild Soybeans: An Opportunistic Resource for Soybean Improvement

Nawaz¹,

Yang²,

Chung³

2018

Rediscovery of Landraces as a Resource for the Future

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“…Wild relatives of modern crops have been used for crop improvement for more than 60 years (Hajjar and Hodgkin, 2007). In their natural habitats, they are able to withstand harsh conditions such as high soil salinity (Muñoz et al , 2017). Adaptation to wide-ranging environments has enriched the genetic pool of these wild relatives (Gruber, 2017), thus representing a rich source of potentially beneficial alleles that can be explored to improve salinity tolerance (Zamani Babgohari et al , 2013).…”

Section: Introductionmentioning

confidence: 99%

A diversity of traits contributes to salinity tolerance of wild Galapagos tomatoes seedlings

Pailles

Awlia

Julkowska

et al. 2019

Preprint

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22Traits of modern crops have been heavily selected in agriculture, causing the commercial 23 lines to be more susceptible to harsh conditions, which their wild relatives are naturally better 24 able to withstand. Understanding the developed mechanisms of tolerance present in wild 25 relatives can enhance crop performance under stress. In this study, salinity tolerance traits of 26 two species of wild tomato endemic to the Galapagos Islands, Solanum 27 cheesmaniae and Solanum galapagense, were investigated. Since these tomatoes grow well 28 despite being constantly splashed with seawater, they could be a valuable genetic resource for 29 improving salinity tolerance in commercial tomatoes. To explore their potential, over 20 30 traits reflecting plant growth, physiology and ion content were recorded in 67 accessions of S. 31 cheesmaniae and S. galapagense and two commercial tomato lines of Solanum lycopersicum. 32 Salt treatments of 200 mM NaCl were applied for ten days, using supported hydroponics. 33Great natural variation was evident in the responses of the Galapagos tomatoes to salt stress 34 and they also displayed greater tolerance to salt stress than the commercial lines tested, based 35 on multivariate trait analyses. Although Galapagos tomatoes in general exhibited better 36 tolerance to salt stress than the commercial lines tested, the accessions LA0317, LA1449 and 37 LA1403 showed particularly high salinity tolerance based on growth maintenance under 38 stress. Thus, Galapagos tomatoes should be further explored using forward genetic studies to 39 identify and investigate the genes underlying their high tolerance and be used as a resource 40 for increasing salinity tolerance of commercial tomatoes. The generated data, along with 41 useful analysis tools, have been packaged and made publicly available via an interactive 42 online application (https://github.com/mmjulkowska/La_isla_de_tomato) to facilitate trait 43 selection and the use of Galapagos tomatoes for the development of salt tolerant commercial 44 tomatoes. 45 46 3 Keywords: 47 salinity tolerance, salt stress, wild relatives, tomato, S. cheesmaniae, S. galapagense, seedling 48 screen, hydroponics, phenotyping, Galapagos tomatoes. 49 2016). Salt stress affects the growth and development of plants, thus significantly reducing 52 their yield and productivity (Arzani and Ashraf, 2016). Global cultivated lands cover ~1.5 53 billion hectares, and an estimated 32 million hectares are damaged by salinity. Irrigated 54 lands, having the highest productivity, comprise just 230 million hectares, of which an 55 estimated 20% have yields significantly reduced by high soil salinity (Munns, 2005). Water 56availability for agriculture is another major concern, not only in desert regions but at a global 57 level, as freshwater supplies are depleting (Famiglietti, 2014). Salt-affected areas worldwide 58 are predicted to continue expanding at a rate of ~10% per year due to low precipitation, high 59 surface evaporation, erosion of rocks, irrigation with sal...

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“…This species was originated in the old world (Afghanistan, Western Asia and the surroundings of the Himalayas), and it is the fourth most important pulse crop in the world with a global production of 2.5 million hectares and 4.8 million tons during the 2017 growing season (FAOSTAT 2017). The main producer of this legume is China, where it has multiple uses, such as consumption as dry grain, green vegetable or processed food, since it is a cheap source of high quality protein (Makkouk et al 2003;Muñoz et al 2017). Additionally, a distinctive characteristic of this crop is its ability to associate with atmospheric nitrogen-fixing bacteria in a symbiotic relationship.…”

Section: Introductionmentioning

confidence: 99%

Bean yellow mosaic virus infecting broad bean in the green belt of Córdoba, Argentina

Pardina

Nome

Reyna

et al. 2019

Preprint

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Broad bean (Vicia faba L) is the fourth most important pulse crop in the world. In Argentina, broad bean production was of 1,841 hectares and 16,500 tons during the 2017 growing season. Broad bean is commonly used in rotations; especially by farmers located in "green belts" that are peri-urban areas surrounding large cities that include horticultural family farms. Plants showing marked foliar mosaic symptoms, typical of viral infection, were collected during the 2015 growing season in the green belt of Córdoba city, Argentina. Preparations of symptomatic tissues were mechanically inoculated onto healthy broad bean plants in the greenhouse, which developed symptoms similar to those observed in the field. In addition, symptomatic samples were positive when tested by indirect ELISA with the anti-potyvirus group monoclonal antibody. Further, flexuous filamentous particles typical of potyviruses were observed under the electronic microscope on dip preparations. Lastly, total RNA was extracted from a symptomatic leaf and high-throughput sequenced, which allowed the assembly of a single virus sequence corresponding to a new highly divergent strain of Bean yellow mosaic virus (BYMV). Phylogenetic insights clustered this Argentinean broad bean isolate (BYMV-ARGbb) within group IX of BYMV. Given the economical importance of this virus and its associated disease, the results presented here are a pivotal first step oriented to explore the eventual incidence and epidemiological parameters of BYMV in broad bean in Argentina.

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Potential Uses of Wild Germplasms of Grain Legumes for Crop Improvement

Cited by 60 publications

References 185 publications

Wild Soybeans: An Opportunistic Resource for Soybean Improvement

Wild Soybeans: An Opportunistic Resource for Soybean Improvement

A diversity of traits contributes to salinity tolerance of wild Galapagos tomatoes seedlings

Bean yellow mosaic virus infecting broad bean in the green belt of Córdoba, Argentina

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