"94","14","archive","1",,,"disk0/00/00/00/94","2011-06-21 14:45:18","2011-06-21 14:45:18","2011-06-21 14:45:18","article",,,"show","Library-ICRISAT@CGIAR.org",,,"","","","","","","","","","","0",,,"Gnanesh","B N","","","","","","","Gnanesh","B N","","","","",,,,,"","",,,,,"","","ICRISAT(Patancheru)","India","Genetic mapping and quantitative trait locus analysis of resistance to sterility
mosaic disease in pigeonpea [Cajanus cajan (L.) Millsp.]","pub","s1.2","","","restricted",,,"Pigeonpea; Molecular markers; Simple sequence repeats (SSRs);Linkage map; QTL","<b>Agrotags</b>     - genetics | isolation | genetic maps | planting | social groups | diseases | crops | phenotypes | genomes | dna <br><b>Fishtags</b>    - NOT-AVAILABLE<br><b>Geopoliticaltags</b> - india | usa | netherlands | mexico","Authors are thankful to the Indo-US Agricultural Knowledge
Initiative of Indian Council of Agricultural Research (ICAR) and
Department of Biotechnology (DBT) of the Government of India and
CGIAR Generation Challenge Programme for financial support to
undertake this study. Thanks are also due to Dr Abhishek Rathore,
ICRISAT; Dr T. Nepolean, Indian Agricultural Research Institute
(IARI), New Delhi; Dr K. N. Ganapathy, Directorate of Sorghum
Research (DSR), Hyderabad and Dr Y. P. Khedikar, University of
Saskatchewan, Canada, for their valuable suggestions.","Sterility mosaic disease (SMD), considered as the “green plague of pigeonpea” and caused by pigeonpea
sterility mosaic virus (PPSMV) is one of the major biotic factors, which leads to heavy yield losses
and hence poses a big challenge for pigeonpea production in the Indian subcontinent. Variability in the
sterility mosaic pathogen revealed the occurrence of five different isolates in India. Among them, three
distinct SMD isolates have been characterized, viz., Patancheru, Bangalore and Coimbatore. Molecular
tools offer a viable option to tackle these biotic stresses via identification of the genomic regions associated
with the trait such as SMD resistance. With an aim of identifying the gene(s)/QTLs linked with SMD
resistance, two F2 populations, i.e. ICP 8863×ICPL 20097 (segregating for Patancheru SMD isolate) and
TTB 7×ICP 7035 (segregating for both Patancheru and Bangalore SMD isolates) were developed and F2:3
families were phenotyped for resistance to respective isolate(s) of SMD. After screening over 3000 SSR
markers on parental genotypes of each mapping population, intra-specific genetic maps comprising of
11 linkage groups and 120 and 78 SSR loci were developed for ICP 8863×ICPL 20097 and TTB 7×ICP
7035 populations, respectively. Composite interval mapping (CIM) based QTL analysis by using genetic
mapping and phenotyping data provided four QTLs for Patancheru SMD isolate and two QTLs for Bangalore
SMD isolate. Identification of different QTLs for resistance to Patancheru and Bangalore SMD isolates
is an indication of involvement of different genes conferring the resistance to these two SMD isolates.
One QTL namely qSMD4 identified within an interval of 2.8cM on LG 7 explaining 24.72% of phenotypic
variance, once it is validated in other genetic background, seems to be a promising QTL for use in marker
assisted selection. In summary, this is the first study on development of intra-specific genetic maps and
identification of QTLs for SMD resistance in pigeonpea","2011","published",,"Field Crops Research","123",,"Elsevier",,"53-61",,,,,,,,,,,"TRUE",,,,,,,,"","http://dx.doi.org/10.1016/j.fcr.2011.04.011","http://scholar.google.com/scholar?as_q=%22Genetic+mapping+and+quantitative+trait+locus+analysis+of+resistance+to+sterility+mosaic+disease+in+pigeonpea+[Cajanus+cajan+%28L.%29+Millsp.]%22&num=10&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publicati","author",,"Indian Council of Agricultural Research","",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Bohra","A","","",,,,,"Borner","A","","",,,,,,,,,,,,,,,"University of Agricultural Sciences(Bangalore)","Mexico",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Government of India - Department of Biotechnology",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Sharma","M","","",,,,,"Sharma","M","","",,,,,,,,,,,,,,,"Osmania University(Hyderabad)",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Generation Challenge Programme",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Byregowda","M","","",,,,,"Pandey","S","","",,,,,,,,,,,,,,,"CIMMYT(Mexico)",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Pandey","S","","",,,,,"Wesley","V","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Wesley","V","","",,,,,"Saxena","R K","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Saxena","R K","","",,,,,"Saxena","K B","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Saxena","K B","","",,,,,"Varshney","R K","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Kavi Kishor","P B","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"94",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Varshney","R K","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,