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水稻抗恶苗病一个主要数量性状位点的定位

Mapping of a Major QTL, , for Bakanae Disease Resistance in Rice.

作者信息

Lee Sais-Beul, Kim Namgyu, Jo Sumin, Hur Yeon-Jae, Lee Ji-Youn, Cho Jun-Hyeon, Lee Jong-Hee, Kang Ju-Won, Song You-Chun, Bombay Maurene, Kim Sung-Ryul, Lee Jungkwan, Seo Young-Su, Ko Jong-Min, Park Dong-Soo

机构信息

National Institute of Crop Science, Milyang 50424, Korea.

Department of Microbiology, Pusan National University, Pusan 46241, Korea.

出版信息

Plants (Basel). 2021 Feb 25;10(3):434. doi: 10.3390/plants10030434.

DOI:10.3390/plants10030434
PMID:33668736
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7996363/
Abstract

Bakanae disease is a fungal disease of rice ( L.) caused by the pathogen (also known as ). This study was carried out to identify novel quantitative trait loci (QTLs) from an variety Zenith. We performed a QTL mapping using 180 F recombinant inbred lines (RILs) derived from a cross between the resistant variety, Zenith, and the susceptible variety, Ilpum. A primary QTL study using the genotypes and phenotypes of the RILs indicated that the locus conferring bakanae disease resistance from the Zenith was located in a 2.8 Mb region bordered by the two RM (Rice Microsatellite) markers, RM1331 and RM3530 on chromosome 1. The log of odds (LOD) score of was 13.43, accounting for 30.9% of the total phenotypic variation. A finer localization of was delimited at an approximate 730 kb interval in the physical map between Chr01_1435908 (1.43 Mbp) and RM10116 (2.16 Mbp). Introducing or pyramiding with other previously identified QTLs could provide effective genetic control of bakanae disease in rice.

摘要

恶苗病是由病原菌（也称为）引起的水稻真菌病害。本研究旨在从“天顶”品种中鉴定新的数量性状基因座（QTL）。我们利用从抗性品种“天顶”和感病品种“Ilpum”杂交产生的180个F重组自交系（RIL）进行了QTL定位。利用RIL的基因型和表型进行的初步QTL研究表明，“天顶”中赋予恶苗病抗性的基因座位于第1染色体上由两个RM（水稻微卫星）标记RM1331和RM3530界定的2.8 Mb区域内。的对数优势（LOD）分数为13.43，占总表型变异的30.9%。在物理图谱中，在Chr01_1435908（1.43 Mbp）和RM10116（2.16 Mbp）之间的大约730 kb区间内对进行了更精细的定位。导入或与其他先前鉴定的QTL聚合可以为水稻恶苗病提供有效的遗传控制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/7f2251352546/plants-10-00434-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/a7911283c473/plants-10-00434-g0A1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/6bb8f8bd6382/plants-10-00434-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/13335a6770ba/plants-10-00434-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/01d9832a58c6/plants-10-00434-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/93418b397a3b/plants-10-00434-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/1c33b30248cd/plants-10-00434-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/7f2251352546/plants-10-00434-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/a7911283c473/plants-10-00434-g0A1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/6bb8f8bd6382/plants-10-00434-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/13335a6770ba/plants-10-00434-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/01d9832a58c6/plants-10-00434-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/93418b397a3b/plants-10-00434-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/1c33b30248cd/plants-10-00434-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/47f8/7996363/7f2251352546/plants-10-00434-g006.jpg

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2
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