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| 水稻产量及其相关性状的数量性状位点(QTL)鉴定(英文) | |
| 作者姓名： | Deshmukh Rupesh Sonah Humira Tiwari Anshuman Mahatman Krityanand Jadhav Srikrishna Kadam Suhas Kesawat Mahipal Reddy Niranjan Deshmukh Nilesh Verulkar Satish |
| 作者单位： | Swami Ramanand Tirth Marathwada University;Indira Gandhi Agricultural University; |
| 摘 要： | 由于大部分水稻育种的最终目标是获得高产、稳产，因此对于育种工作者来说．水稻产量及其构成因素 是重要的性状。在大田试验中，采用随机区组设计，设两个重复，对CT9993-5-10-1-M × IR62266-42-6-2杂交而得 的144份水稻品系DH群体的产量及其主要农艺性状的数量性状位点(QTLs)进行定位。采用MAPMAKER/QTL 1．1软件进行区间定位并估计每个QTL的表型方差的百分比,以LOD阈值>2．4来确定一个QTL的有无.试验鉴 定出与6个水稻农艺性状如千粒重、单株产量、株高、穗长、粒宽、粒长宽比有关的23个QTLs,这些QTLs将有助于 提高水稻产量,并有利于了解水稻产量性状的遗传调控. |
| 关 键 词： | 双单倍体 水稻 数量性状位点 产量性状 |
Identification of quantitative trait loci for yield and related traits in rice |
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| Deshmukh Rupesh,Sonah Humira,Tiwari Anshuman,Mahatman Krityanand,Jadhav Srikrishna,Kadam Suhas,Kesawat Mahipal,Reddy Niranjan,Deshmukh Nilesh,Verulkar Satish.Identification of quantitative trait loci for yield and related traits in rice[J].Guangxi Agricultural Sciences,2008,39(5). | |
| Authors: | Deshmukh Rupesh Sonah Humira Tiawari Anshuman Mahatman Krityanand Jadhav Srikrishna Kadam Suhas Kesawat Mahipal Reddy Niranjan Deshmukh Nilesh Verulkar Satish |
| Institution: | 1. Swami Ramanand Tirth Marathwada University,Nanded,Maharastra 431606,India;Indira Gandhi Agricultural University，Raipur 492012,India 2. Swami Ramanand Tirth Marathwada University,Nanded,Maharastra 431606,India 3. Indira Gandhi Agricultural University,Raipur 492012,India |
| Abstract: | Grain yield and its components are important traits for breeder,since ultimate goal in majority of breeding program is to obtain high and stable yield.In present investigation,Quantitative Trait Loci(QTLs)for grain yield and major agronomical traits were mapped，using a doubled haploid(DH)population of 144 rice lines from the cross CT9993-5-10-1-M × IR62266-42-6-2.DH population was evaluated in field with RBD design and two replications.MAPMAKER/QTL 1.1 software was used for interval mapping and to estimate the percentage of the phenotypic variance explained by each QTL.A threshold of LOD>2.4 is used to claim the Presence of a QTL．Total 23 QTLs for six agronomical traits were identified,and six agronomical traits included thousand-grain weight,grain yield per plant,plant height,panicle length,grain breadth.grain length-breadth ratio.These QTLs will be helpful for rice yield improvement,and will also contribute to the understanding of the genetic control of the traits. |
| Keywords: | double haploid rice QTLs yield related traits |
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