Genome organization of Papaya Ringspot Virus isolates from India: Complete genome organization and nucleotide sequence of PRSV pathotypes P and W - Couverture souple

Parameswari, B.; Jain, R.K.

 
9783659178313: Genome organization of Papaya Ringspot Virus isolates from India: Complete genome organization and nucleotide sequence of PRSV pathotypes P and W
Couverture souple
ISBN 10 : 3659178314 ISBN 13 : 9783659178313
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

Genome of PRSV pathotypes P (10317 nt) and W (10335 nt) from India were completely sequenced. Their genome architecture was similar to other 15 isloates from the rest of the world. Comparative sequence analysis revealed that pathotypes P and W shared high degree of sequence identity both at nucleotide (89%) and aminoacid (94%) levels. Sequence comparison of individual cistrons (except P1) also revealed similar trend. The P1 region was most divergent (upto 33%) and this could be attributed to geographical and host adaptation of PRSV. Cistron by cistron sequence comparison of PRSV pathotypes P and W from India with available 15 sequences and phylogenetic analysis based on full genome polyprotein revealed two distinct groupings of Asian and American isolates, although PRSV India clustered along with the American isolates. Putative recombination sites (24) were available through out the genomes, except in small 6K2 region. Maximum numbers of recombination sites were seen in 5′UTR and P1 region and has been speculated to be the most vulnerable region in shaping PRSV genome.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Genome of PRSV pathotypes P (10317 nt) and W (10335 nt) from India were completely sequenced. Their genome architecture was similar to other 15 isloates from the rest of the world. Comparative sequence analysis revealed that pathotypes P and W shared high degree of sequence identity both at nucleotide (89%) and aminoacid (94%) levels. Sequence comparison of individual cistrons (except P1) also revealed similar trend. The P1 region was most divergent (upto 33%) and this could be attributed to geographical and host adaptation of PRSV. Cistron by cistron sequence comparison of PRSV pathotypes P and W from India with available 15 sequences and phylogenetic analysis based on full genome polyprotein revealed two distinct groupings of Asian and American isolates, although PRSV India clustered along with the American isolates. Putative recombination sites (24) were available through out the genomes, except in small 6K2 region. Maximum numbers of recombination sites were seen in 5′UTR and P1 region and has been speculated to be the most vulnerable region in shaping PRSV genome.

Biographie de l'auteur

Dr. B. Parameswari, is presently working as Scientist (Plant Pathology) at Sugarcane Breeding Institute Regional Centre, Karnal. She completed her Ph.D from IARI, New Delhi. She is recipient of ICAR Jawaharlal Nehru award. Her research interests are in the areas of genomics, post transcriptional gene silencing and diagnosis of plant viruses.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3659178314
ISBN 13 
9783659178313
Reliure
Broché
Nombre de pages
180
Coordonnées du fabricant
non disponible
Personne responsable
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