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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Indonesian Journal of Agricultural Science BERITA BIOLOGI JURNAL BIOLOGI INDONESIA ANNALES BOGORIENSES Annales Bogorienses
Joko Prasetiyono
Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Immunology & microbiology Medicine & Pharmacology

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Field Evaluation of Conde Progenies with Early Heading Date and Resistance to Bacterial Leaf Blight Fatimah, Fatimah; Prasetiyono, Joko; Dadang, Ahmad; Tasliah, Tasliah; Masumah, Masumah
Annales Bogorienses Vol. 23 No. 2 (2019): Annales Bogorienses
Publisher : BRIN

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Heading date is one of key traits in rice adaptation to different environments. Rice with early maturity is very useful for increasing rice production extensively especially in Indonesia. The improvement of rice variety Conde for heading date and resistance to bacterial leaf blight (BLB) was developed through Marker Assisted Backcrossing approach (MAB). Xa7 derived from Conde as recipient parents for resistance to BLB and Hd2 gene derived from Nipponbare as a donor parent for heading date. The aim of this research was to evaluate the performance of heading date and agronomic traits of 85 BC2F4 lines in two field stations, Sukamandi (West Java) and Maros (South Sulawesi). Molecular analysis of Xa7 on chromosome 6 and Hd2 gene on chromosome 7 and agronomic performance was evaluated. Foreground analysis resulted 41% for Xa7 and 66.7% for Hd2 gene in homozygous condition. The majority of lines have similar heading date and yield with Conde and more resistance to bacterial leaf blight (BLB) than Conde. Six lines flowered earlier 5 days than Conde in Sukamandi and three lines flowered earlier 3 days in Maros. Twelve lines with flowered earlier than Conde, resistance to BLB and similar yield with Conde were selected for background analysis resulted 93% genome recovery. These lines would be further evaluated in preliminary yield trail for their stability.
Molecular Evaluation for Drought Tolerant Using Marker Assisted Breeding Method Fatimah, Fatimah; Prasetiyono, Joko; Trijatmiko, Kurniawan Rudi; Sustiprijatno, Sustiprijatno
Annales Bogorienses Vol. 22 No. 2 (2018): Annales Bogorienses
Publisher : BRIN

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The sustainability and increasing the national rice production require the readiness of food and agriculture sector cope with the impacts of climate change, land degradation, drought area, sloping production and the raising of population growth. Adaptation plays an important role in ensuring the sustainability of food security. This research aimed to develop drought-tolerant variety of Inpari 30 (submergence tolerance variety) and Situ Bagendit through marker-assisted backcrossing-through pyramiding gene of identified QTLs for foreground selection and to explore SSRs and 6K SNPs for background selection distributed in 12 rice chromosome of drought tolerant donor (Cabacu) and recipient rice (Inpari 30 and Situ Bagendit). The foreground selection revealed that flanking SSRs of each QTLs (qRPF2.1, qGPP2.1, qSPP4.1 and Sub1) was less than 2 cM. The background selection through polymorphic survey of Rice 6K SNP primers revealed 2457 (53,3%) polymorphic SNPs on Inpari 30 vs Cabacu and 2563 (55,6%) polymorphic SNPs on Situ Bagendit vs Cabacu with the average distance about 0.74 cM/chromosome. The genotypic selection of F1 Inpari 30/Cabacu and F1 Situ Bagendit/Cabacu have already in heterozygote condition for these 4 QTLs target. These lines was continued for backcross breeding to develop BC1F1 Inpari 30/Cabacu and BC1F1 Situ Bagendit/Cabacu generation.
Molecular Detection of Resistance To Bacterial Leaf Blight on Conde Indonesian Rice Variety Fatimah, Fatimah; Prasetiyono, Joko; Polosoro, Aqwin; Baroya, Mushlihatun
Annales Bogorienses Vol. 22 No. 1 (2018): Annales Bogorienses
Publisher : BRIN

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Rice bacterial leaf blight (BLB) disease caused by Xanthomonas oryzae pv. oryzae (Xoo) affected grain yield and decreasing rice production in rice growing countries. Conde, Indonesian rice variety, exhibits high resistance to most of the Indonesian races of (BLB) and has been used in Indonesia for cultivated rice. This study was aimed to conduct the molecular detection between proximal markers in chromosome 6 and relative expression of Conde rice variety compare to IRBB7 in Xa7 region. The population screening, BLB evaluation and molecular detection around the Xa7 region were conducted. The results showed from the collection of individual recombinants between resistant and susceptible parents narrow the region containing the BTBPOZ domain. The sequence alignment of Xa7LD37 in two resistant and three susceptible cultivars demonstrated a perfect association. The sequence alignment in exon region of Loc_Os06g46240 in Nipponbare, IRBB7, and IR64 identified indel/SNPs in this region leading to nucleotide substitution and frameshift resulting in amino acid change between resistant and susceptible cultivars. It was predicted that Conde revealed the similar gene action with Xa7 gene for BLB that encodes a BTB POZ domain.
Co-Authors , Tasliah Ahmad Dadang Baroya, Mushlihatun Baroya, Mushlihatun Baroya, Mushlihatun Didy Sopandie Fatimah . fatimah Fatimah HAJRIAL ASWIDINNOOR Ida Hanarida Soemantri Iman Ridwan, Iman Kurniawan Rudi Trijatmiko, Kurniawan Rudi Mahrup Mahrup, Mahrup Masdiar Bustamam Masumah, Masumah Muhammad Yunus Polosoro, Aqwin SUGIONO MOELJOPAWIRO Sustiprijatno Sustiprijatno, Sustiprijatno Tasliah Tasliah Tintin Suhartini Tri Puji Priyatno