Transfer of auxinic herbicide resistance from Brassica kaber to Brassica juncea and Brassica rapa through embryo rescue

Jugulam, Mithila; Hall, J. Christopher

doi:10.1007/s11627-013-9515-y

Cited by 15 publications

(6 citation statements)

References 18 publications

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“…Among two embryo rescue protocols used as described by Mithila and Hall [ 18 ], strategy II (i.e. culturing of immature siliques on medium prior to embryo rescue) was best for producing B .…”

Section: Resultsmentioning

confidence: 99%

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Transfer of Dicamba Tolerance from Sinapis arvensis to Brassica napus via Embryo Rescue and Recurrent Backcross Breeding

Jugulam

Ziauddin

et al. 2015

PLoS ONE

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Auxinic herbicides (e.g. dicamba) are extensively used in agriculture to selectively control broadleaf weeds. Although cultivated species of Brassicaceae (e.g. Canola) are susceptible to auxinic herbicides, some biotypes of Sinapis arvensis (wild mustard) were found dicamba resistant in Canada. In this research, dicamba tolerance from wild mustard was introgressed into canola through embryo rescue followed by conventional breeding. Intergeneric hybrids between S. arvensis (2n = 18) and B. napus (2n = 38) were produced through embryo rescue. Embryo formation and hybrid plant regeneration was achieved. Transfer of dicamba tolerance from S. arvensis into the hybrid plants was determined by molecular analysis and at the whole plant level. Dicamba tolerance was introgressed into B. napus by backcrossing for seven generations. Homozygous dicamba-tolerant B. napus lines were identified. The ploidy of the hybrid progeny was assessed by flow cytometry. Finally, introgression of the piece of DNA possibly containing the dicamba tolerance gene into B. napus was confirmed using florescence in situ hybridization (FISH). This research demonstrates for the first time stable introgression of dicamba tolerance from S. arvensis into B. napus via in vitro embryo rescue followed by repeated backcross breeding. Creation of dicamba-tolerant B. napus varieties by this approach may have potential to provide options to growers to choose a desirable herbicide-tolerant technology. Furthermore, adoption of such technology facilitates effective weed control, less tillage, and possibly minimize evolution of herbicide resistant weeds.

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Section: Resultsmentioning

confidence: 99%

“…Embryo rescue was required as hybrid seeds failed to develop. To optimize hybrid plant regeneration, two embryo rescue protocols, i.e., embryo culture and silique culture, were used according to Mithila and Hall [ 18 ]. Established plantlets were transferred to soil and were grown in the growth chamber.…”

Section: Methodsmentioning

confidence: 99%

Transfer of Dicamba Tolerance from Sinapis arvensis to Brassica napus via Embryo Rescue and Recurrent Backcross Breeding

Jugulam

Ziauddin

et al. 2015

PLoS ONE

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“…Yao et al [138] produced allohexaploids by crossing B. maurorum with all three Brassica allotetraploids. Herbicide resistance was transferred from Sinapis arvensis to B. juncea and B. rapa using embryo rescue [139]. Cytoplasmic male sterility has been transferred from B. juncea and B. napus to B. oleracea [140].…”

Section: Methods To Facilitate Interspecific Hybridization and The Trmentioning

confidence: 99%

Interspecific Hybridization for Brassica Crop Improvement

2019

Crop Breed Genet Genom.

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Interspecific hybridization is widespread in nature, where it can lead to either the production of new species or to the introgression of useful adaptive traits between species. In agricultural systems, there is also great potential to take advantage of this process for targeted crop improvement. In the Brassica genus, several crop species share close relationships: rapeseed (Brassica napus) is an ancestral hybrid between turnip (B. rapa) and cabbage (B. oleracea), and mustard species B. juncea, B. carinata and B. nigra share genomes in common. This close relationship, plus the abundance of wild relatives and minor crop species in the wider Brassiceae tribe which readily hybridize with the Brassica crop species, makes this genus an interesting example of the use of interspecific hybridization for crop improvement. In this review we introduce the Brassica crop species and their wild relatives, barriers to interspecific and intergeneric hybridization and methods to overcome them, summarize previous successful and unsuccessful attempts at the use of interspecific hybridization for crop improvement in Brassica, and provide information about resources available to breeders wishing to take advantage of this method in the Brassica genus.

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“…These hybrid GR weeds prove to be more difficult for landowners and farmers to control than a typical GR weed, requiring integrated management practices [89]. The transfer of herbicide resistance through hybridization has been documented in several cases, including between Brassica crops (canola) and their weedy relatives [90], between crop and wild rice (Oryza spp.) [91], and between crop and wild wheat (Aegilops spp.)…”

Section: Hybridizationmentioning

confidence: 99%

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

Clements

Jones

2021

Agronomy

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The ability of weeds to evolve is key to their success, and the relationship between weeds and humans is marked by co-evolution going back to the agricultural revolution, with weeds evolving to counter human management actions. In recent years, climate change has emerged as yet another selection pressure imposed on weeds by humans, and weeds are likewise very capable of adapting to this latest stress of human origin. This review summarizes 10 ways this adaptation occurs: (1) general-purpose genotypes, (2) life history strategies, (3) ability to evolve rapidly, (4) epigenetic capacity, (5) hybridization, (6) herbicide resistance, (7) herbicide tolerance, (8) cropping systems vulnerability, (9) co-evolution of weeds with human management, and (10) the ability of weeds to ride the climate storm humans have generated. As pioneer species ecologically, these 10 ways enable weeds to adapt to the numerous impacts of climate change, including warming temperatures, elevated CO2, frequent droughts and extreme weather events. We conclude that although these 10 ways present formidable challenges for weed management, the novelty arising from weed evolution could be used creatively to prospect for genetic material to be used in crop improvement, and to develop a more holistic means of managing agroecosystems.

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Transfer of auxinic herbicide resistance from Brassica kaber to Brassica juncea and Brassica rapa through embryo rescue

Cited by 15 publications

References 18 publications

Transfer of Dicamba Tolerance from Sinapis arvensis to Brassica napus via Embryo Rescue and Recurrent Backcross Breeding

Transfer of Dicamba Tolerance from Sinapis arvensis to Brassica napus via Embryo Rescue and Recurrent Backcross Breeding

Interspecific Hybridization for Brassica Crop Improvement

Ten Ways That Weed Evolution Defies Human Management Efforts Amidst a Changing Climate

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