Biodiversitas Jurnal Of Biological Diversity Sebelas Maret University Volume 22, Number 10, October 2021

Title	Biodiversitas Jurnal Of Biological Diversity Sebelas Maret University Volume 22, Number 10, October 2021
Edition	Volume 22, Number 10, October 2021
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ISBN/ISSN
Author(s)
Subject(s)	Biological
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Series Title
GMD	Karya Tulis Ilmiah
Language	Indonesia
Publisher	The Society For Indonesia Biodiversity
Publishing Year
Publishing Place	Surakarta
Collation
Abstract/Notes	Phenotype and genotype variability of interspecific rice lines related to bacterial leaf blight resistance (Xanthomonas oryzae pv. oryzae) character SITI YURIYAH1,2,♥, DEDY DARNAEDI1 , TATANG MITRA SETIA1 , GUT WINDARSIH3 , DWINITA WIKAN UTAMI2 1Program of Biology, Graduate School, Universitas Nasional. Jl. Sawo Manila, Pejaten, Pasar Minggu, South Jakarta 12520, Jakarta, Indonesia. Tel.: +62-21-7806700 (hunting) ext. 24, Fax.: +62-21-7806462, ♥email: sitiyuriyah2@gmail.com 2 Indonesian Center of Biotechnology and Agricultural Genetic Resources for Research and Development. Jl.Tentara Pelajar 3A, Bogor 16111, West Java, Indonesia 3Program of Biology, Faculty of Science, Universitas Islam Negeri Sultan Maulana Hasanuddin Banten. Jl. Syech Nawawi Al Bantani, Andamu’i, Curug, Serang City 42116, Banten, Indonesia Manuscript received: 30 July 2021. Revision accepted: 1 September 2021. Abstract. Yuriyah S, Darnaedi D, Setia TM, Windarsih G, Utami DW. 2021. Phenotype and genotype variability of interspecific rice lines related to bacterial leaf blight resistance (Xanthomonas oryzae pv. oryzae) character. Biodiversitas 22: 4123-4130. Wild rice species are the source of the gene pool for rice genetic diversity. The cross-species crosses (interspecific crosses) play an important role in breeding, namely in terms of expanding the diversity of desirable characters, such as disease resistance and improvement in yield potential. Currently, the genes from wild rice species have been successfully introgressed into cultivated rice so that they can overcome the rice production constraints, including the introgression of genes for the bacterial leaf blight (BLB) resistance. The purpose of this study was to analyze the variability of phenotype and genotype performance of lines derived from wild rice species for the character of resistance to BLB disease. A total of 33 selected backcross lines derived from wild rice species of O. rufipogon and O. glaberrima as the donor parents and 2 control varieties (resistant and susceptible to BLB disease), were used in this study. The evaluation of phenotype and genotype of resistance characters to BLB disease was carried out during a vegetative phase of the plant. The resistance evaluation was carried out in a greenhouse, while the genotype performance was analyzed using 4 STS markers linked to Xa4, Xa7, and Xa13 genes. The result of the phenotype evaluation showed that there were variations among the resistance of the tested lines. Three lines derived from a Situ Bagendit/Oryza rufipogon cross were resistant to all BLB races used in the testing. Those three lines indicated to have the allele of the Xa7 resistance gene based on the genotype performance which grouped with the Code variety that had the Xa7 resistance gene. Keywords: Bacterial leaf blight resistance, molecular markers selection, wild rice species
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