Record Details

Genetic Linkage Map Construction in Pearl Millet Using SSR Markers

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/10460/
http://www.ijpab.com/vol5-iss5a186.php
10.18782/2320-7051.5663
 
Title Genetic Linkage Map Construction in Pearl Millet Using SSR Markers
 
Creator Durgaraju, C
Srivastava, R K
Reddy, N
Katiyar, P
Kilaru, K D
 
Subject Plant Genetics
Pearl Millet
Genetics and Genomics
 
Description For pearl millet production in the semi-arid tropics, Sclerospora graminicola is a major biotic
constraint causes Downy mildew. The pathogen is heterothallic and frequent recombination
leads to evolution of new virulent populations. Identification of resistance to new virulent isolates
is a prerequisite for resistance breeding. A very good understanding of ability to manipulate
oligogenic and quantitative traits is offered to plant breeders by recent advances in genetic
marker technology. In the present investigation genotypic data generated for a total of 88 marker
loci (39 Genomic SSRs and 49 EST SSRs) were used to construct a linkage map of the pearl
millet mapping population of 188 F8 RIL progenies based on the cross ICMB 89111-P6 x ICMB
90111-P6. A skeleton linkage map of seven linkage groups with a total map length of 725.5 cM
(Haldane units) was constructed using data from 74 marker loci for 188 RILs using JoinMap at
LOD threshold value of 5.0 and MapMaker/Exp version 3.0b and map was drawn using Map
Chart 2.2. The map length of individual linkage groups ranged from a minimum of 32.1cM (LG3)
to a maximum of 140.2 cM (LG1). The average inter marker distance was 9.8 cM, with an
average density of 0.102 markers/cM. The total number of mapped loci per linkage group (LG)
ranged from 5 on LG3 to 23 on LG1.
 
Publisher Vital Biotech, India
 
Date 2017
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10460/1/Genetic%20Linkage%20Map%20Construction%20in%20Pearl%20Millet%20Using%20SSR%20Markers.pdf
Durgaraju, C and Srivastava, R K and Reddy, N and Katiyar, P and Kilaru, K D (2017) Genetic Linkage Map Construction in Pearl Millet Using SSR Markers. International Journal of Pure & Applied Bioscience, 5 (5). pp. 1304-1315. ISSN 2320 – 7051