Fine mapping and pyramiding of brown planthopper resistance genes QBph3 and QBph4 in an introgression line from wild rice O. officinalis

2015 ◽  
Vol 35 (1) ◽  
Author(s):  
Jie Hu ◽  
Cong Xiao ◽  
Mingxing Cheng ◽  
Guanjun Gao ◽  
Qinglu Zhang ◽  
...  
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Author(s):  
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Huang Zhen ◽  
Shu Lihui ◽  
Ren Xiang ◽  
Li Xianghua ◽  
...  

Hereditas ◽  
2009 ◽  
Vol 146 (2) ◽  
pp. 67-73 ◽  
Author(s):  
Yuqiang Liu ◽  
Changchao Su ◽  
Ling Jiang ◽  
Jun He ◽  
Han Wu ◽  
...  

2012 ◽  
Vol 69 (7) ◽  
pp. 802-808 ◽  
Author(s):  
Jie Hu ◽  
Mingxing Cheng ◽  
Guanjun Gao ◽  
Qinglu Zhang ◽  
Jinghua Xiao ◽  
...  

Heredity ◽  
2003 ◽  
Vol 92 (3) ◽  
pp. 212-217 ◽  
Author(s):  
G X Tan ◽  
Q M Weng ◽  
X Ren ◽  
Z Huang ◽  
L L Zhu ◽  
...  

2015 ◽  
Vol 2 (1) ◽  
pp. 98
Author(s):  
Nono Carsono ◽  
Yessikha V. Barus ◽  
Santika Sari ◽  
Winny D. Widarmi ◽  
Danar Dono ◽  
...  

<p>Brown planthopper is one of the most destructive insect pest of rice in Indonesia and other Asian countries. Pyramiding some brown planthopper resistance genes is a valuable approach to create more durable resistance against the pest. The objective of this study was to identify polymorphisms of Brown Planthopper Resistance genes (Bph) on 20 genotypes of rice, and to obtain genetic relationship among genotypes tested. The experiment was conducted from June to September 2012 at Green House and Laboratory of Plant Analysis and Biotechnology, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. Twenty genotypes were analyzed, and two of them were used as check varieties. Simple Sequence Repeat (SSR) markers were applied to detect Bph3, Bph4, Qbph3, and Qbph4 genes. Polymorphic levels were analyzed by calculating PIC (Polymorphic Information Content). The grouping of rice genotypes were done based on principal components analysis (PCA) of SSR data, and the genetic relationship based on the presence of Bph genes was estimated using UPGMA (Unweighted Pair Group With Arithmetic mean). Results showed that RM313, RM8072, RM8213, RM5953, RM586, and RM589 markers were polymorphic. Rice genotypes PTB 33, Diah Suci, Cibogo, Cisantana, Digul, Ciherang, Inpari 13, Inpari 10, and Memberamo had Bph3, Qbph3, Bph4, and Qbph4. Meanwhile Bph3, Qbph3, and Bph4 were supposed to be belonged by IR 64, Aek Sibundong, Batang Gadis, IR 66, and Mekongga. Kalimas and Tukat Penatu had Bph3, Qbph3, dan Qbph4. IR 74 had Bph3 and Qbph3, and Fatmawati had Bph3 and Bph4. UPGMA clustering resulted in two main clusters, in which the first cluster consisted of 2 subclusters. PTB-33 was closely related with Memberamo, Tukat Penatu, Digul, Diah Suci, and Kalimas. The SSR markers used in this study were proven to be valuable in molecular detection of Bph genes and in estimating genetic relationsips of rice genotypes. PTB-33 was a good donor of resistance genes, as well as Memberamo, Tukat Penatu, Digul, Diah Suci, and Kalimas which were identified as promising donors in rice breeding resistance to brown planthopper. </p><p><strong>Keywords :</strong> Bph gene, Brown Planthopper, Genetic relationship, SSR markers.</p>


2021 ◽  
Author(s):  
Cuong Dinh Nguyen ◽  
Shao-Hui Zheng ◽  
Sachiyo Sanada-Morimura ◽  
Masaya Matsumura ◽  
Hideshi Yasui ◽  
...  

2017 ◽  
Vol 35 (4) ◽  
pp. 197
Author(s):  
Tintin Suhartini

<p>ABSTRACT<br />Wild rice species could be used  for improvement of rice varieties because they have a good character for resistance to biotic and abiotic stresses. Some of Indonesian wild rice species are Oryza meyeriana, O. granulata, O. longiglumis, O. officinalis, O. ridleyi, O. rufipogon and O. schlechteri. IRRI has a collection of 2,500 accesions of wild rice and 18 species were collected in ICABIOGRAD, Bogor. Some species of wild rice are known to have resistance genes to biotic and abiotic stresses. A number of<br />accessions of O.  officinalis contained resistance gene to brown planthopper, blast disease, bacterial leaf blight (BLB) and sheath rot. One of the species that has resistance to pests and diseases is O. minuta. The resistance to tungro virus occurs in O. punctata. Tolerance to drought, Al and Fe toxicities occurs in wild rice species of O. sativa genome AA group. Resistance genes from wild rice species can be inserted into cultivated rice through conventional techniques in combination with biotechnology, while gene transfer and gene detection from wild rice to cultivated rice can be done through cross breeding, molecular markers, backcrossing and embryo rescue. The success of introgression of resistance genes from wild rice species to cultivated rice will increase genetic diversity of rice. As an example O. minuta has been implemented in introgression of BLB resistance gene on IR64. Introgression of O. nivara gene in IRRI had improved some superior rice varieties in Indonesia, namely IR30, IR32, IR34, IR36 and IR38, which were tolerant to brown planthopper, dwarf virus and bacterial leaf blight. Oryza rufipogon wich has BLB and blast resistance gene has been used for improvement of new varieties Inpari Blas and Inpari HDB which were released in 2013.<br />Keywords: Oryza spp., varietal improvement, resistance genes, biotic stresses, abiotic stresses</p><p>Abstrak</p><p>Spesies padi liar dapat dimanfaatkan dalam perakitan varietas unggul karena memiliki gen ketahanan terhadap cekaman biotik dan abiotik. Spesies padi liar yang ada di Indonesia adalah Oryza meyeriana, O. granulata, O. longiglumis, O. officinalis, O. ridleyi, O. rufipogon, dan O. schlechteri. IRRI memiliki koleksi 2.500 aksesi padi liar dan 18 spesies dikoleksi di BB Biogen. Sejumlah aksesi O. officinalis memiliki gen ketahanan terhadap wereng coklat, penyakit blas, hawar daun bakteri (HDB), dan busuk pelepah. Salah satu spesies yang memiliki ketahanan terhadap hama-penyakit tersebut adalah O. minuta. Ketahanan terhadap virus tungro terdapat pada O. punctata. Toleransi terhadap kekeringan, keracunan Al, dan Fe terdapat pada spesies padi liar kelompok O. sativa genom AA. Gen ketahanan dari spesies padi liar dapat dimasukkan (introgresi) ke dalam padi budi daya melalui teknik konvensional yang dikombinasikan dengan bioteknologi, sementara transfer gen dapat melalui persilangan, marka molekuler, silang balik, dan penyelamatan embrio. Keberhasilan introgresi gen ketahanan dari spesies padi liar ke padi budi daya akan meningkatkan keragaman genetik tanaman. Spesies padi liar O. minuta telah dimanfaatkan dalam introgresi gen ketahanan HDB pada varietas IR64. Introgresi gen asal O. nivara di IRRI menambah varietas unggul di Indonesia, yaitu IR30, IR32, IR34, IR36, dan IR38, yang toleran terhadap wereng coklat, virus kerdil rumput, dan HDB. Spesies padi liar O. rufipogon yang memiliki gen ketahanan HDB dan blas telah digunakan dalam pembentukan varietas unggul baru Inpari HDB dan Inpari Blas yang dilepas pada 2013.<br /><br /></p>


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