Molecular and phenotypic evaluation for heading date and panicle length on F2 selected aromatic rice progenies derived from gene pyramiding effort. Issue 1 (May 2021)

• Record Type: Journal Article
• Authors: Carsono, N; Saragih, Y; Sari, S; Rachmadi, M
• Is Part Of: IOP conference series. Volume 759:Issue 1(2021)
• Publication Date: 2021-05
• Subjects: Molecular marker -- morpho-agronomic traits -- Rice -- Simple Sequence Repeats; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/759/1/012070
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Gene pyramiding, an attempt to combine many favourable genes from many parents into one single genotype, has been applied in recent years. Through hybridization of many rice genotypes including cv. Pandanwangi (fragrance rice), PTB33 (brown planthopper resistant), Ciapus (high yield and moderate amylose content) and KA (early maturity), some promising genotypes have been obtained. Thus, in order to select the best genotypes among the F2 progenies derived from gene pyramiding effort, both phenotypic and molecular evaluations have to be done. These pyramided genotypes were evaluated with IFAP and ESP ( fgr gene), RM19414 ( Hd3 ), RM7601 ( Hd2 ), and RM3600 ( LP1) for molecular assessment, meanwhile morpho-agronomic traits were done to assess their performance. Aromatic trait was detected by 1.7% KOH. Meanwhile heading date and panicle length were measured phenotypically. Data obtained from molecular markers were scanned by visualizing DNA bands and calculating PIC (Polymorphism Information Content). Data from phenotypic markers were categorized based on IBPGR (International Board for Plant Genetic Resources) standards. Genotype #131 was supposed to have high yield potential, early maturity, aromatic, and intermediate amylose content. The selected will be recommended as promising genotype and continued as elite breeding materials and will be evaluated for their benefit.