Soybean

Kinloch, R. A.

doi:10.2134/agronmonogr36.c15

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…The male RN are involved in mating but do not feed (Linford and Oliveira 1940 ; Gaur and Perry 1991 ; Ganji et al 2013 ; Robbins 2013 ). Typical symptoms of RN infection include root decay, stunting, and foliar chlorosis (Cook et al 1997 ; Kinloch 1998 ; Rivera and Thiessen 2020 ). Annual soybean yield losses of up to 33% were reported in soybean cultivars that were partially or not resistant to RN, resulting in an average loss of 28,000 Mt in southern USA in 2019 (Kim et al 2016 ; Allen et al 2020 ).…”

Section: Reniform Nematode and Lance Nematodementioning

confidence: 99%

“…The outbreak of H. columbus was first detected in South Carolina and predominantly prevailed in South Carolina, North Carolina, and Georgia while H. galeatus and H. magnistylus were commonly reported in soybean production areas in Alabama, Arkansas, Mississippi, and Tennessee (Lewis and Fassuliotis 1982 ; Robbins 1982 ; Koenning et al 1999 ). These nematodes primarily damage the structures of the epidermis and cortex in the root (Lewis and Fassuliotis 1982 ; Lewis, 1989 ) and cause root stunting/shedding, foliar chlorosis, as well as severely limiting lateral root growth under heavy infestations (Kinloch 1998 ; Timper 2009 ). Soybean yield losses from the infestation of these LN species can be as high as 70% (Mueller and Sanders 1987 ; Noe 1993 ).…”

Section: Reniform Nematode and Lance Nematodementioning

confidence: 99%

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Breeding for disease resistance in soybean: a global perspective

et al. 2022

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Key message This review provides a comprehensive atlas of QTLs, genes, and alleles conferring resistance to 28 important diseases in all major soybean production regions in the world. Abstract Breeding disease-resistant soybean [Glycine max (L.) Merr.] varieties is a common goal for soybean breeding programs to ensure the sustainability and growth of soybean production worldwide. However, due to global climate change, soybean breeders are facing strong challenges to defeat diseases. Marker-assisted selection and genomic selection have been demonstrated to be successful methods in quickly integrating vertical resistance or horizontal resistance into improved soybean varieties, where vertical resistance refers to R genes and major effect QTLs, and horizontal resistance is a combination of major and minor effect genes or QTLs. This review summarized more than 800 resistant loci/alleles and their tightly linked markers for 28 soybean diseases worldwide, caused by nematodes, oomycetes, fungi, bacteria, and viruses. The major breakthroughs in the discovery of disease resistance gene atlas of soybean were also emphasized which include: (1) identification and characterization of vertical resistance genes reside rhg1 and Rhg4 for soybean cyst nematode, and exploration of the underlying regulation mechanisms through copy number variation and (2) map-based cloning and characterization of Rps11 conferring resistance to 80% isolates of Phytophthora sojae across the USA. In this review, we also highlight the validated QTLs in overlapping genomic regions from at least two studies and applied a consistent naming nomenclature for these QTLs. Our review provides a comprehensive summary of important resistant genes/QTLs and can be used as a toolbox for soybean improvement. Finally, the summarized genetic knowledge sheds light on future directions of accelerated soybean breeding and translational genomics studies.

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Section: Reniform Nematode and Lance Nematodementioning

confidence: 99%

Section: Reniform Nematode and Lance Nematodementioning

confidence: 99%

Breeding for disease resistance in soybean: a global perspective

et al. 2022

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“…A reprodução é medida procedendo-se à contagem dos nematóides ( ovos, juvenis e/ou adultos, conforme o gênero envolvido) extraídos do sistema radicular e/ou da rizosfera. Sintomas bastante evidentes decorrentes da interação planta-nematóide também podem ser utilizados para avaliar a resistência das plantas, como é o caso da contagem de galhas radiculares incitadas por Meloidogyne spp .. Nesse caso, é fundamental que haja correlação entre a ausência dos sintomas e a resistência da planta No caso da soja, utiliza-se a contagem de galhas, pois há correlação positiva destas com a suscetibilidade das plantas (Kinloch, 1990(Kinloch, , 1998Young, 1998). Para outras espécies de plantas, como o milho, esta correlação não é verdadeira, havendo a necessidade de se recorrer a outros parâmetros.…”

Section: Medindo a Resistência De Plantas A Nematóidesunclassified

Genética quantitativa associada ao uso de marcadores moleculares para seleção de genótipos de soja com resistência a >i<Meloidogyne javanica>/i<

Silva

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Lotus japonicus: A New Model to Study Root-Parasitic Nematodes

Lohar

Bird

2003

Plant and Cell Physiology

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;Sedentary plant-parasitic nematodes engage in complex interactions, and induce specialized feeding structures by redirecting plant developmental pathways, and parallels have been observed with rhizobial nodule development on legumes. A model legume would greatly facilitate a better understanding of the differences between parasitic (nematode) and mutualistic (rhizobia and mycorrhizae) symbioses, and we have developed Lotus japonicus as such a model. Conditions for efficient parasitism by root-knot nematode (Meloidogyne spp.) of the widely used Lotus "Gifu" ecotype were established. Features of Lotus biology, such as thin and translucent roots, proved ideal for monitoring the progress of nematode infection both on live specimens and post-staining. We examined L. japonicus mutants with nodulation phenotypes. One, har1, which is a hypernodulated mutant defective in a CLAVATA1-like receptor kinase gene, was found to be hyperinfected by M. incognita. However, another hypernodulated Lotus mutant exhibited the same level of M. incognita infection as wild-type plants. We also established conditions for infection of Lotus by soybean cyst nematode (Heterodera glycines). In contrast to the response to root-knot nematode, the Gifu ecotype is resistant to H. glycines, and elicits a hypersensitive response. This pattern of resistance recapitulates that seen on nematode-resistant soybean plants. We conclude that L. japonicus is a powerful model legume for studying compatible and incompatible plant-nematode interactions.

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Soybean

Cited by 4 publications

References 12 publications

Breeding for disease resistance in soybean: a global perspective

Breeding for disease resistance in soybean: a global perspective

Genética quantitativa associada ao uso de marcadores moleculares para seleção de genótipos de soja com resistência a >i<Meloidogyne javanica>/i<

Lotus japonicus: A New Model to Study Root-Parasitic Nematodes

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