QTL identification for molecular breeding of fibre yield and fibre quality traits in jute

Evaluation of newly developed SSR markers and identification of quantitative trait loci for bast fibre cellulose in white jute (Corchorus capsularis)

“…Tri-and di-nucleotide repeat types were predominant with 65.01% and 19.62%, indicating that Tri-and di-nucleotide repeats are the main types in jute. GA rich nucleotides were the most abundant repeats among 846 SSR primer pairs evaluated, indicating that GA nucleotide repeat may be considered as major types in jute as similarly described in earlier studies (Goff et al, 2002;Mir et al, 2009;Das et al, 2012).…”

“…Furthermore, the effect of one digenic epistatic interaction was negative, indicating that allele combinations could increase the accumulation of cellulose content instead of parental alleles. Negative QQ interaction was also previously found in jute during the QTL analysis for fibre-related traits (Das et al, 2012).…”

“…Furthermore, the effect of one digenic epistatic interaction was negative, indicating that allele combinations could increase the accumulation of cellulose content instead of parental alleles. Negative QQ interaction was also previously found in jute during the QTL analysis for fibre‐related traits (Das et al, ). Previous studies in various crops have also highlighted the role of epistasis interactions through QTL analysis, such as cotton (Shen et al, ), rapeseed (Zhao, Becker, Zhang, Zhang & Ecke, ), maize (Ma et al, ), rice (Mei et al, ; Xing et al, ) and wheat (Kumar, Roy, Kulwal, Balyan, & Gupta, ).…”

“…So far, only little information associated with jute germplasm resources, genetics and biology is available (Kar, Kundu, Sarkar, Sinha, & Mahapatra, ). Molecular markers, Single nucleotide polymorphism (SNPs) (Biswas, Dey, Karmakar, & Satpathy, ), Random markers (Roy et al, ), genomic SSR or microsatellites (Das et al, ; Mir et al, ), have been developed and used in jute to characterize genetic diversity and to construct genetic linkage maps and QTL mapping. Of these markers, microsatellites are most famous and adaptable marker type applied in plant genetic mapping studies (Gupta & Varshney, ).…”

A complete genetic linkage map and QTL analyses for bast fibre quality traits, yield and yield components in jute (Corchorus olitorius L.)

“…These efforts proved to be more of academic interest than of any practical breeding use. More recently, Das et al [24] used an incomplete linkage map of C. olitorius, with six linkage groups, to analyze quantitative trait loci (QTLs) for bast fibre quality and yield traits. However, a framework genetic map with complete coverage of the genome as expected on the basis of haploid chromosome number of jute (n = 7) is yet to be developed.…”