Abstract
Virus isolate Y47 was obtained fromMalvastrum coromandelianum showing yellow vein symptom in Honghe, Yunnan Province. The complete nucleotide sequence of DNA-A was determined, it contains 2731 nucleotides, having typical genomic organization of a begomovirus, encoding 6 ORFs with 2 ORFs [AV1(CP) and AV2] in virionsense DNA and 4 ORFs (AC1–AC4) in complementarysense DNA. Comparisons show that the total DNA-A of Y47 has the highest sequence identity (77%) with that ofOkra yellow vein mosaic virus- [201] (AJ002451), while less than 76% identities are found when compared with other begomoviruses. The molecular data show that virus isolate Y47 is a distinct begomovirus species, for which the nameMalvastrum yellow vein virus is proposed. Satellite DNA molecule (Y47β) was found to be associated with Y47 using the primers (beta01 and beta02) specific for DNAβ. Y47β consists of 1348 nucleotides, with a functional ORF (C1) in complementary-sense DNA. Y47β has 62%–67% sequence identity with DNAβ molecule associated withCotton leaf curl Multan virus orCotton leaf curl Rajasthan virus, while lower than 46% sequence identities are found when compared with other reported DNAβ molecules. Relationship dendrograms show that DNAβ molecules are co-evolved with their help begomoviruses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
