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Development and Identification of Novel Rice Blast Resistant Sources and Their Characterization Using Molecular Markers

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To develop and characterize introgression lines for leaf and neck blast resistance, 326 introgression lines were developed using various accessions of six different AA genome wild species in the genetic background of elite Indian varieties like PR114 and Pusa 44 and were screened for blast resistance. Stringent phenotyping coupled with genotyping using gene based markers led to the identification of four resistant introgression lines, which showed promising resistance and do not possess any of the tested genes. Furthermore, multi-location screening confirmed the field resistance of the four introgression lines to both leaf and neck blast. Molecular characterization of these introgression lines using genome-wide simple sequence repeat markers revealed the presence of small percentage of wild Oryza genome introgrssion. So these lines can be used for mapping and identification of novel leaf and neck blast resistance genes. Thus, these four introgression lines can be considered as new genetic resources for blast resistance.

Key words: rice; blast resistance; introgression line; gene profiling; wild species

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Ketersediaan

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Informasi Detail

Judul Seri

Rice Science

No. Panggil

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Penerbit

: Elsevier., 2015

Deskripsi Fisik

Rice Science, 2015, 22(6): 300

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/'Agus

Versi lain/terkait

Lampiran Berkas

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