Working group session:
Structural Genomics
Presentation type:
poster
Authors:
Gahukar, Santosh; Akhare, Amrapali; Kakade, Shivaji; Pharate, Atul; Dani, Raviprakash
Presenter:
Gahukar, Santosh
Correspondent:
Gahukar, Santosh; Akhare, Amrapali
Abstract:
Santosh Gahukar*, Amrapali Akhare, Shivaji Kakade, Atul Pharate, Raviprakash Dani
Abstract
Cotton (Gossypium hirsutum L. having 2n=4x=52) is one of the important fiber crop playing a key role in economical and social affairs of the world. Breeding for high cotton yield is still the primary goal of cotton breeding programs, however improving fibre quality has become increasingly important. The extra long staple length cotton which are superior in fibre quality account for only a small fraction (5%) of the cotton production. Therefore, it is the need of the day to improve fibre quality in the dominating commercial hirsutum genotypes, to fulfil the requirements of growing textile industry, processing and end users.
The parental genotypes and individual progenies of single plant selection developed under ongoing university research project were used to develop RILs. The development of breeding material was initiated in the year 2009-2010 two crosses were made between IET- 7 × MCU-5 and BBP- 10 × AKH- 976. Among the genotype selected MCU-5 and AKH-976 is having good fiber length. The F1 were selfed to produce F2 and subsequent generations. The progenies were catagorised in to various group and plant to progeny rows were grown in 2013-2014 kharif to pick up the non segregating plants.
Recombinant lines were used to record data for following characters viz., plant height, number of monopodia per plant, number of sympodia per plant, number of bolls per plant, boll weight per plant (g), seed cotton yield per plant (g) and fiber staple length (mm). The selected line were categorized in to three categories based on staple length short (19.0 and below), medium (20-24) and long (24.5 and above). Observations were also recorded on seed cotton yield (SCY). Among the plant population twelve lines showed long staple length, twenty five lines showed medium staple length and thirteen lines showed the short staple length. The lines are being tested for its homozygocity on the basis of progeny test.
*Author Correspondence address: Officer In-Charge, Biotechnology Center, Dr. P.D.K.V. Akola, (MS), India. E. mail Address – sj_ghahukar@yahoo.com , Mobile. No. +919921004345