TAILIEUCHUNG - Molecular diversity and population structure in breeding lines of castor (Ricinus communis L.)

Castor is a non-edible oilseed crop, primarily grown for oil containing an unusual hydroxy fatty acid and ricinoleic acid (80–90%) of the total fatty acids. Commercial exploitation of heterosis in castor was successful in India due to the development of stable pistillate lines from a dominant and epistatic “S” type pistillate source. Diversification of pistillate sources using NES and other new sources necessitated the need for identification of diverse male combiners among the existing pool of male combiners. In this study, 60 breeding lines/genotypes were characterized for genetic diversity and population structure using EST-SSRs primers. SSR allelic variation was low as indicated by the average number of alleles (), gene diversity () and polymorphic information content (). Cluster analysis (neighbor joining tree) revealed 3 major genotypic groups. The genotypes showed weak population structure (membership coefficients (≥ )) and genotypes were classified into 3 populations (K=3) and the remaining genotypes into admixture group in STRUCTURE analysis. The genetic diversity information generated in this study would assist in selection of diverse genotypes for breeding to exploit heterosis for development of hybrids. | Molecular diversity and population structure in breeding lines of castor (Ricinus communis L.)

• Sinh học
• Ricinus communis L
• Molecular diversity
• Population structure
• Breeding lines of castor
• Breeding lines
• Ricinus Communis L on microorganisms
• Castor inhibitors
• Ricinus communis
• Diseases worldwide
• Capsule borer
• Castor (Ricinus communis L
• Millets intercropping systems
• Pest incidence
• Sustained productivity of castor
• Genotypic diversity
• Indigenous castor
• PCA analysis
• Agro morphological evaluation
• Seed yield
• Genetic variability
• Genetic advance
• Crida under rain fed conditions
• Genotype × environment interactions
• Stability analysis
• Yield attributing characters
• Seed yield and yield attributing characters
• Morphological traits
• Qualitative characters
• Genotypes for morphological traits
• Characterization of Castor
• Castor (Ricinus communis L )
• Genetic variability studies
• Wue related traits
• F2 mapping population of castor
• Heterobeltiosis and standard heterosis
• Standard heterosis
• Contributing attributes in castor
• Heterosis for seed yield
• BMC Plant Biology
• Antisense expression
• Castor oil
• Amino acids
• Castor equivalent yield
• Net return
• B: C ratio
• Castor based intercropping systems
• Row spacing of castor
• Periodical staggered nipping
• Botrytis disease incidence
• Quality of castor
• Significantly higher oil content
• Foliar sprays
• Cold injury
• B C ratio
• Chemical foliar sprays
• Pistillate x pistillate G x E interaction
• Seed yield in castor
• Pistillate based hybrids
• Stability analysis of pistillate
• SSR based genetic diversity
• Pistillate parents of castor
• Pistillate parents
• Important genetic resource
• Pistillate x pistillate
• Relative heterosis
• Rabi season in castor
• Pistillate crosses
• Lá Thầu dầu
• Thành phần hóa học cặn chiết N hexane
• Hợp chất dẫn xuất phenolic
• Tạo cặn chiết mẫu thực vật
• báo cáo khoa học
• báo cáo y học
• công trình nghiên cứu về y học
• tài liệu về y học
• cách trình bày báo cáo
• Combining ability
• Crop improvement
• Studies on magnitude
• Estimates of combining ability
• Yield and its contributing traits
• Castor Ricinus communis L
• Castor genotypes
• SSR markers
• Assessment of molecular diversity
• Elemental sulphur
• Single superphosphate
• Different castor hybrids
• Assessment of performance
• Performance and suitability
• Endospermic seed
• Differentially expressed genes
• Absolute quantification
• Yield loss
• Chlorantraniprole and nylon net
• Estimation of crop loss
• Lepidopteran pests
• Lepidopteran pests of Castor
• Dates of sowing
• Crop geometry
• Rabi season
• Castor to varying weather variables
• Crop geometry with levels
• Study of heterosis for seed yield
• Component traits in castor