Cercospora kikuchii (Matsumato & Tomoyasu) M.W. Gardner Proceedings of the Indiana Academy of Science (). Cercospora kikuchii (T. Matsumoto & Tomoy.) M.W. Gardner, Proc. Indiana Acad. Sci.: 12 () [MB#]. Caused by a fungal pathogen, Cercospora kikuchii. Infection is favored by humid conditions and temperatures of 75 to 80 F or higher. Can be found throughout.

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Cercospora Leaf Blight and Purple Seed Stain of Soybeans

Incidence of thiophanate-methyl resistance in Cercospora kikuchii within a single lineage based on amplified fragment length polymorphisms in Japan. When diseased seeds germinate, the cotyledons often become shrivelled and dark purple.

Generally occurs during pod-filling stages Augustaffecting both leaves and seeds of soybeans. Isolates of lineage 4 grouped together with isolates of C.

We also detected a recombination event between lineage 1 and 3 isolate A2, from Argentina ; isolate A2 can be seen as the divergent haplotype 9 Fig 4. In datasets S4 to S8, each indel, regardless of its size, cerocspora considered a fifth state and coded as a single mutation. The information is depersonalized and is displayed as numbers, meaning it cannot be traced back to individuals.

These discolorations are often accompanied by wide cracks in the seed coat, usually extending transversely along the seed. Cercospora leaf blight purple seed stain. Mycosphaerellaceae, Ascomycota contains some of the most destructive plant pathogens.

Information theory and an extension of maximum likelihood principle.

Cercospora kikuchii is a fungal pathogen of soybeans which produces a photosensitizing phytotoxic polyketide metabolite, cercosporin. It is replaced each time there is a query done. There is a recent, growing awareness that cryptic species are an underestimated risk and that recognizing and elucidating cryptic species complex is crucial for food security and phytosanitary vigilance in a globalized agriculture system [ 6749 — 52 ].


This sharing of haplotypes suggests that 11 out of 12 NR isolates had inherited the mitochondrial genome from a parental donor that belonged to lineage 2, while receiving part of the nuclear genome from a parental donor of lineage 1. We use cookies in a very limited number of scenarios that are all present to help the users to have an easier experience.

Cercospora Leaf Blight and Purple Seed Stain of Soybeans

Heritability of purple seed stain resistance in soybean. Detailed information on primer design and usage is provided S1 Table.

Uppsala University, Evolutionary Biology Centre. Inheritance of soybean resistance to purple seed stainSoybean Genet Newsl.

Cercospora kikuchii

This will help to protect your privacy. We then scanned the datasets of both cfp and tub independently with the program RDP3 [ 31 ] to search for intragenic recombination events using seven different recombination detection methods.

The analysis was carried out using two simultaneous runs of one million generations each, with one cold and seven heated chains in each run; the temperature parameter was set to 0. To infer genetic connections in the network analyses, we used information from the concatenated sequences of the nuclear cfp and tub genes datasets S4 to S7 and the mitochondrial cyb gene dataset S8. Seeds are infected through their attachment to the pod, the hilum. Author information Copyright and License information Disclaimer.


When infected seed germinates the fungus invades the seedling tissue, retards growth and may cause death. Hereafter, a subset of sequences is referred to as a genealogical lineage see Bayesian Phylogeny section below. For practical reasons we have decided not to translate all pages in several languages anymore because it was too heavy to maintain but some of the labels of the basic and advanced query pages are still available.

A large number of vegetative compatibility groups were uncovered in C. Fruiting amphigenous, also occurring on the stems, pods and seeds.

The distribution of C. There was clear evidence that all four lineages were present in Japan, with high frequency of lineages 2 and 4. Using Google Analytics, we can see what content is popular on our websites. This article has been cited by other articles in PMC. Location Preference Edit Cancel Country: Cercosporin synthesis in culture is modulated by several environmental factors. Genetic admixture among lineages The occurrence of genetic admixture cercosppra not anticipated.

The nuclear genes tub and cfp turned out to be an excellent choice kikhchii sources of polymorphic markers to investigate the phylogenetic and phylogeographic relationships among the causal agents of CLB and PSS. Crop Protection Accounts Add Funds. Harvard University Press;

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