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A survey was conducted in major yam cultivation zones in Côte d’Ivoire in 2009 to determine the incidence, severity of viral diseases, and viruses associated with the infected plants. Incidence and severity of the viral diseases were estimated based on symptoms. Enzyme-linked immunosorbent assay ...


Yeyeh, M.N.Y.Diallo, H.Akinbade, S.Séka, K.Kumar, P.L.[Distribution, incidence and severity of viral diseases of yam (Dioscorea spp.) in Cote dIvoire]Distribution, incidence and severity of viral diseases of yam (Dioscorea spp.) in Cote dIvoire

To date, several viruses of different genera have been reported to infect yam (Dioscorea spp.). The full diversity of viruses infecting yam, however, remains to be explored. High-throughput sequencing (HTS) methods are increasingly being used in the discovery of new plant viral genomes. In this s...


Silva, G.Bömer, M.Rathnayake, A.I.Sewe, S.O.Visendi, P.Oyekanmi, J.O.Quain, M.D.Akomeah, B.Kumar, P.L.Seal, S.E.[Molecular characterization of a new virus species identified in yam (Dioscorea spp.) by high-throughput sequencing]Molecular characterization of a new virus species identified in yam (Dioscorea spp.) by high-throughput sequencing

Water yam (Dioscorea alata L.) is one of the most important food yams with wide geographical distribution in tropics. One of the major constraints to water yam production is anthracnose disease caused by a fungus, Colletotrichum gloesporioides (Penz.). There are no economically feasible solutions...


Bhattacharjee, R.Nwadili, C.O.Saski, C.A.Agre, A.P.Scheffle, B.E.Augusto, J.López Montes, A.Onyeka, J.T.Kumar, P.L.Bandyopadhyay, Ranajit[An EST-SSR based genetic linkage map and identification of QTLs for anthracnose disease resistance in water yam (Dioscorea alata L.)]An EST-SSR based genetic linkage map and identification of QTLs for anthracnose disease resistance in water yam (Dioscorea alata L.)

In vitro culture offers many advantages for yam germplasm conservation, propagation and international distribution. However, low virus titres in the generated tissues pose a challenge for reliable virus detection, which makes it difficult to ensure that planting material is virus-free. In this st...


Bömer, M.Rathnayake, A.I.Visendi, P.Sewe, S.O.Sicat, J.P.A.Silva, G.Kumar, P.L.Seal, S.E.[Tissue culture and next-generation sequencing: a combined approach for detecting yam (Dioscorea spp.) viruses]Tissue culture and next-generation sequencing: a combined approach for detecting yam (Dioscorea spp.) viruses

Tamiru, M.Natsume, S.Takagi, H.White, B.Yaegashi, H.Shimizu, M.Yoshida, K.Uemura, A.Oikawa, K.Abe, A.Urasaki, N.Matsumura, HBabil, P.Yamanaka, S.Matsumoto, R.Muranaka, S.Girma, G.López Montes, A.Gedil, M.Bhattacharjee, R.Abberton, M.T.Kumar, P.L.Rabbi, Ismail Y.Tsujimura, M.Terachi, T.Haerty, W.Corpas, M.Kamoun, S.Kahl, G.Takagi, H.Asiedu, RobertTerauchi, R.[Genome sequencing of the staple food crop white Guinea yam enables the development of a molecular marker for sex determination]Genome sequencing of the staple food crop white Guinea yam enables the development of a molecular marker for sex determination

Badnaviruses (family Caulimoviridae, genus Badnavirus) have emerged as serious pathogens especially affecting the cultivation of tropical crops. Badnavirus sequences can be integrated in host genomes, complicating the detection of episomal infections and the assessment of viral genetic diversity ...


Turaki, A.A.Bömer, M.Silva, G.Kumar, P.L.Seal, S.E.[PCR-DGGE analysis: unravelling complex mixtures of badnavirus sequences present in yam germplasm]PCR-DGGE analysis: unravelling complex mixtures of badnavirus sequences present in yam germplasm

The efficacy of four biological control agents (BCAs): Trichoderma asperellum strain NGT158, T. longibrachiatum strain NGT167, Bacillus subtilis and Pseudomonas fluorescens for the management of post-harvest tuber rot among four yam species, Dioscorea rotundata, D. cayenensis, D. alata, and D. du...


Dania, V.O.Fadina, O.O.Ayodele, M.Kumar, P.L.[Evaluation of isolates of Trichoderma, pseudomonas and bacillus species as treatment for the control of post-harvest fungal rot disease of yam (Dioscorea spp.)]Evaluation of isolates of Trichoderma, pseudomonas and bacillus species as treatment for the control of post-harvest fungal rot disease of yam (Dioscorea spp.)

Yam mosaic virus (YMV; genus Potyvirus ) is considered to cause the most economically important viral disease of yams ( Dioscorea spp.) in West Africa which is the dominant region for yam production globally. Yams are a vegetatively propagated crop and the use of virus-free planting material form...


Silva, G.Bömer, M.Nkere, C.Kumar, P.L.Seal, S.E.[Rapid and specific detection of Yam mosaic virus by reverse-transcription recombinase polymerase amplification]Rapid and specific detection of Yam mosaic virus by reverse-transcription recombinase polymerase amplification

Potyviruses (genus Potyvirus; family Potyviridae) are widely distributed and represent one of the most economically important genera of plant viruses. Therefore, their accurate detection is a key factor in developing efficient control strategies. However, this can sometimes be problematic particu...


Silva, G.Oyekanmi, J.Nkere, C.K.Bömer, M.Kumar, P.L.Seal, S.E.[Rapid detection of potyviruses from crude plant extracts]Rapid detection of potyviruses from crude plant extracts

Anthracnose, caused by Colletotrichum gloeosporioides, is one of the major constraints limiting water yam (Dioscorea alata) production in the tropics. In this region, yam anthracnose control is mostly achieved by the deployment of moderately resistant yam genotypes. Therefore, screening for new s...


Nwadili, C.O.Augusto, J.Bhattacharjee, R.Atehnkeng, J.López Montes, A.Onyeka, T.J.Kumar, P.L.Asiedu, RobertBandyopadhyay, Ranajit[Comparative reliability of screening parameters for anthracnose resistance in water yam (Dioscorea alata)]Comparative reliability of screening parameters for anthracnose resistance in water yam (Dioscorea alata)

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