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Screening bacterial leaf blight (BLB) resistance gene in Nepalese rice gene pool using molecular markers. / Madan Raj Bhatta
in Proceedings of the research papers presented at Special Session Marker Assisted Breeding during Working Group Meeting on Plant Breeding and Genetics from 24-25 April 2012, Khumaltar, Lalitpur, Nepal / Madan Raj Bhatta
Title : Screening bacterial leaf blight (BLB) resistance gene in Nepalese rice gene pool using molecular markers. Material Type: printed text Authors: Madan Raj Bhatta, Editor ; Resham B Amgai, Editor ; Pantha, Sumitra, Author ; Niroula, Raj.K, Author ; Sah, Bindeshwar P., Author ; Bishal G. Tarnang, Author ; Hamal, Shreya S., Author Publisher: Lalitpur : Nepal Agriculture Research Council (NARC) Publication Date: 2012 Pagination: 18-22 p. Languages : English (eng) Keywords: 'durable', 'resistant', 'susceptible', 'pathotype', 'pyramiding' Abstract: Bacterial Leaf Blight (BLB) is the most important yield limiting factor in Nepalese rice. BLB resistance rice varieties are highly demanding in the country. Breeding efforts for developing disease resistant depends on the availability and use of resistant gene donors. Ninety six Nepalese rice accessions were screened using eight SSR markers and one STS marker for presence and absence of BLB resistance gene. We detected BLB resistance gene Xa-10 on two accessions, Xa-13 on six accessions, Xa-7 on 23 accessions, Xa-10 on five accessions, Xa-3 and Xa-4 on 52 accessions, Xa-5 on 25 accessions, Xa-8 on 30 rice accessions. No any rice accessions have Xa-21. Similarly, 17 rice accessions showed three and more than three BLB resistance genes. Presence of Xa-13 on susceptible check variety CNTRL-85033 confirmed that different BLB pathotypes are active in Nepalese rice field and need of gene pyramiding for durable resistance.
Link for e-copy: http://elibrary.narc.gov.np/?r=1487 Screening bacterial leaf blight (BLB) resistance gene in Nepalese rice gene pool using molecular markers. [printed text] / Madan Raj Bhatta, Editor ; Resham B Amgai, Editor ; Pantha, Sumitra, Author ; Niroula, Raj.K, Author ; Sah, Bindeshwar P., Author ; Bishal G. Tarnang, Author ; Hamal, Shreya S., Author . - Lalitpur : Nepal Agriculture Research Council (NARC), 2012 . - 18-22 p.
in Proceedings of the research papers presented at Special Session Marker Assisted Breeding during Working Group Meeting on Plant Breeding and Genetics from 24-25 April 2012, Khumaltar, Lalitpur, Nepal / Madan Raj Bhatta
Languages : English (eng)
Keywords: 'durable', 'resistant', 'susceptible', 'pathotype', 'pyramiding' Abstract: Bacterial Leaf Blight (BLB) is the most important yield limiting factor in Nepalese rice. BLB resistance rice varieties are highly demanding in the country. Breeding efforts for developing disease resistant depends on the availability and use of resistant gene donors. Ninety six Nepalese rice accessions were screened using eight SSR markers and one STS marker for presence and absence of BLB resistance gene. We detected BLB resistance gene Xa-10 on two accessions, Xa-13 on six accessions, Xa-7 on 23 accessions, Xa-10 on five accessions, Xa-3 and Xa-4 on 52 accessions, Xa-5 on 25 accessions, Xa-8 on 30 rice accessions. No any rice accessions have Xa-21. Similarly, 17 rice accessions showed three and more than three BLB resistance genes. Presence of Xa-13 on susceptible check variety CNTRL-85033 confirmed that different BLB pathotypes are active in Nepalese rice field and need of gene pyramiding for durable resistance.
Link for e-copy: http://elibrary.narc.gov.np/?r=1487 E-copies
http://nkcs.org.np/narc/dl/?r=1487URL
in Proceedings of the research papers presented at Special Session Marker Assisted Breeding during Working Group Meeting on Plant Breeding and Genetics from 24-25 April 2012, Khumaltar, Lalitpur, Nepal / Madan Raj Bhatta
Title : Variation on rust resistance characteristics on Nepalese barley germplasm. Material Type: printed text Authors: Madan Raj Bhatta, Editor ; Resham B Amgai, Editor ; Pantha, Sumitra, Author ; Khatiwada, Shambhu P., Author Publisher: Lalitpur : Nepal Agriculture Research Council (NARC) Publication Date: 2012 Pagination: 31-34 p. Languages : English (eng) Keywords: 'Puccinia', 'resistant', 'susceptible', 'rust', 'gene' Abstract: Barley is the major crop for the people living in the high hills and mountainous region of the Nepal. Rust is the major production threat for barley cultivation. However, a lot of variation can be observed on Nepalese barley accessions with respect to rust resistance characteristics. Two hundred and forty one barley accessions were screened for leaf rust ( caused by Puccinia hordei) and stripe rust ( caused by P. striformis f.sp. hordei) resistance characteristics on heading stage at Khumaltar, Lalitpur, Nepal during normal barley growing season 2011. Bonus (origin Sweden) and Local Jau (Nepalese landrace) were used as resistant and susceptible check respectively. Seventeen barley accessions showed leaf rust susceptibility but resistant with stripe rust. Thirty barley accessions showed resistant for both leaf rust and strip rust. Lower frequency of the leaf rust infection may be due to prevalent resistance gene for leaf rust resistant characteristics in Nepalese barley.
Link for e-copy: http://elibrary.narc.gov.np/?r=1490 Variation on rust resistance characteristics on Nepalese barley germplasm. [printed text] / Madan Raj Bhatta, Editor ; Resham B Amgai, Editor ; Pantha, Sumitra, Author ; Khatiwada, Shambhu P., Author . - Lalitpur : Nepal Agriculture Research Council (NARC), 2012 . - 31-34 p.
in Proceedings of the research papers presented at Special Session Marker Assisted Breeding during Working Group Meeting on Plant Breeding and Genetics from 24-25 April 2012, Khumaltar, Lalitpur, Nepal / Madan Raj Bhatta
Languages : English (eng)
Keywords: 'Puccinia', 'resistant', 'susceptible', 'rust', 'gene' Abstract: Barley is the major crop for the people living in the high hills and mountainous region of the Nepal. Rust is the major production threat for barley cultivation. However, a lot of variation can be observed on Nepalese barley accessions with respect to rust resistance characteristics. Two hundred and forty one barley accessions were screened for leaf rust ( caused by Puccinia hordei) and stripe rust ( caused by P. striformis f.sp. hordei) resistance characteristics on heading stage at Khumaltar, Lalitpur, Nepal during normal barley growing season 2011. Bonus (origin Sweden) and Local Jau (Nepalese landrace) were used as resistant and susceptible check respectively. Seventeen barley accessions showed leaf rust susceptibility but resistant with stripe rust. Thirty barley accessions showed resistant for both leaf rust and strip rust. Lower frequency of the leaf rust infection may be due to prevalent resistance gene for leaf rust resistant characteristics in Nepalese barley.
Link for e-copy: http://elibrary.narc.gov.np/?r=1490 E-copies
http://nkcs.org.np/narc/dl/?r=1490URL