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Reddy, Kondreddy Eswar,Noh, Jin Hyeong,Yoo, Mi-Sun,Kim, Young-Ha,Kim, Nam-Hee,Doan, Huong Thi Thanh,Ramya, Mummadireddy,Jung, Suk-Chan,Van Quyen, Dong,Kang, Seung-Won Elsevier 2013 Veterinary microbiology Vol.167 No.3
<P><B>Abstract</B></P> <P>Deformed wing virus (DWV) is one of the most common viral infection in honeybees. Phylogenetic trees were constructed for 16 partial nucleotide sequences of the structural polyprotein region and the RNA helicase region of South Korean DWVs. The sequences were compared with 10 previously reported DWV sequences from different countries and the sequences of two closely related viruses, Kakugo virus (KGV) and <I>Varroa destructor</I> virus-1 (VDV-1). The phylogeny based on these two regions, the Korean DWV genomes were highly conserved with 95–100% identity, while they also shared 93–97% similarity with genotypes from other countries, although they formed a separate cluster. To investigate this phenomenon in more detail, the complete DWV genome sequences of Korea-1 and Korea-2 were determined and aligned with six previously reported complete DWV genome sequences from different countries, as well as KGV and VDV-1, and a phylogenetic tree was constructed. The two Korean DWVs shared 96.4% similarity. Interestingly, the Korea-2 genome was more similar to the USA (96.5%) genome than the Korea-1. The Korean genotypes highly conserved with USA (96%) but low similarity with the United Kingdom3 (UK3) genome (89%). The end of the 5′ untranslated region (UTR), the start of the open reading frame (ORF) region, and the 3′ UTR were variable and contained several substitutions/transitions. This phenomenon may be explained by intramolecular recombination between the Korean and other DWV genotypes.</P>
Orchid floral volatiles: Biosynthesis genes and transcriptional regulations
Ramya, Mummadireddy,An, Hye Ryun,Baek, Yun Su,Reddy, Kondreddy Eswar,Park, Pue Hee Elsevier 2018 Scientia horticulturae Vol.235 No.-
<P>Floral scent and colour are key trait for many floricultural crops. Floral volatiles are biologically and economically important plant derived compounds and they play vital role in pollinator attraction, plant defense and interaction with surrounding the environment. Orchidaceae is one of the largest and most widespread families of flowering plants, with more than 25,000 species. Orchids are one of the most significant plants in ecologically adopted every habitation on earth. Floral volatiles is not limited in its role to pollinator attraction, it's widely used for perfumes, cosmetics, flavourings and therapeutic applications. Even though biochemistry of floral volatiles is still new field for investigation. Due to importance of the plant biology orchid floral scent research were deeply needed. Analysis of the biosynthesis mechanisms involved in floral scent is necessary to understand the fine-scale molecular functions and to breed to new cultivars through floral volatile genetic engineering approaches. Now a days many researchers developed floral scent models in plants. However, little is known about the pathways responsible for floral scent in orchids, due to the long life cycle and large genome size. Only some terpenoid pathways were reported in orchids. In this review, we mainly concentrated orchid floral volatile regulation and compounds synthesis responsible pathways. Moreover,we mentioned emission of orchid floral volatiles and their function in pollination ecology. This information will provide a basic information on orchid floral scent research.</P>
Reddy, Kondreddy Eswar,Yoo, Mi Sun,Kim, Young-Ha,Kim, Nam-Hee,Ramya, Mummadireddy,Jung, Ha-Na,Thao, Le Thi Bich,Lee, Hee-Soo,Kang, Seung-Won Springer-Verlag 2016 Virus genes Vol.52 No.2
<P>Sacbrood virus (SBV) represents a serious threat to the health of managed honeybees. We determined four complete SBV genomic sequences (AmSBV-Kor1, AmSBV-Kor2, AcSBV-Kor3, and AcSBV-Kor4) isolated from Apis mellifera and Apis cerana in various regions of South Korea. A phylogenetic tree was constructed from the complete genomic sequences of these Korean SBVs (KSBVs) and 21 previously reported SBV sequences from other countries. Three KSBVs (not AmSBV-Kor1) clustered with previously reported Korean genomes, but separately from SBV genomes from other countries. The KSBVs shared 90-98 % identity, and 89-97 % identity with the genomes from other countries. AmSBV-Kor1 was least similar (similar to 90 % identity) to the other KSBVs, and was most similar to previously reported strains AmSBV-Kor21 (97 %) and AmSBV-UK (93 %). Phylogenetic analysis of the partial VP1 region sequences indicated that SBVs clustered by host species and country of origin. The KSBVs were aligned with nine previously reported complete SBV genomes and compared. The KSBVs were most different from the other genomes at the end of the 5' untranslated region and in the entire open reading frame. A SimPlot graph of the VP1 region confirmed its high variability, especially between the SBVs infecting A. mellifera and A. cerana. In this genomic region, SBVs from A. mellifera species contain an extra continuous 51-nucleotide sequence relative to the SBVs from A. cerana. This genomic diversity may reflect the adaptation of SBV to specific hosts, viral cross-infections, and the spatial distances separating the KSBVs from other SBVs.</P>
Reddy, K.E.,Noh, J.H.,Kim, Y.H.,Yoo, M.S.,Doan, H.T.T.,Ramya, M.,Jung, S.C.,Quyen, D.V.,Kang, S.W. Academic Press 2013 Virology Vol.444 No.1
Phylogenetic trees were constructed for 24 partial nucleotide sequences of the nonstructural polyprotein (ORF1) and structural polyprotein regions (ORF2) of Korean IAPV genotypes, as well as eight previously reported IAPV sequences from various countries. Most of the Korean genotypes formed a distinct cluster, separate from other country genotypes. To investigate this phenomenon in more detail, three complete IAPV genome sequences were identified from different regions in Korea, i.e., Korea1, Korea2, and Korea3. These sequences were aligned with eight previously reported complete genome sequences and various genome regions were compared. The Korean IAPVs were very similar to those from China and Israel, but highly diverged from USA and Australian genotypes. Interestingly, they showed greater variability than the USA and Australian genotypes in ORF1, but highly similar to the Australian genotype in the ORF2 region. Thus, genetic recombination may account for the spatial distance between the Korean IAPV genotypes and those from other countries.
A new species of Asphondylia gall midge (Diptera: Cecidomyiidae) damaging fruit of mango in India
Kolesik Peter,David K.J.,Reddy D.S.,Gotyal B.S.,Ramya RS 한국응용곤충학회 2024 Journal of Asia-Pacific Entomology Vol.27 No.1
Larvae of a previously unknown species of gall midge were found feeding inside young fruits of mango, Mangifera indica (Anacardiaceae), in Andhra Pradesh, India, causing severe damage to crop. The new species is named Asphondylia mangiferi Kolesik & David, its morphology is described, a COI mitochondrial gene segment is sequenced, and the basic biology is given. The new species is the first Asphondylia Loew known to feed on mango and the third gall midge known to infest mango fruit worldwide. LSID urn:lsid:zoobank.org:pub:394D1A93-DE6A-42E9-AF8C-8B002B84B23