Genetic Dissection of Milled Rice Grain Shape by Using a Recombinant Inbred Line Population and Validation of qMLWR11.1 and qMLWR11.2
| Title: | Genetic Dissection of Milled Rice Grain Shape by Using a Recombinant Inbred Line Population and Validation of qMLWR11.1 and qMLWR11.2 |
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| Authors: | Liting Zhang, Zhanhua Lu, Zhaoyang Pan, Tengkui Chen, Shiguang Wang, Wei Liu, Xiaofei Wang, Haoxiang Wu, Hao Chen, Yunyi Zhan, Xiuying He |
| Source: | Plants, Vol 13, Iss 22, p 3178 (2024) |
| Publisher Information: | MDPI AG, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Botany |
| Subject Terms: | rice (Oryza sativa L.), appearance quality, milled rice grain shape, MGL, MGW, MLWR, Botany, QK1-989 |
| More Details: | Grain shape in rice (Oryza sativa L.) is a complex trait governed by multiple quantitative trait loci (QTLs). To dissect the genetic basis of rice shape, QTL analysis was conducted for milled rice grain width (MGW), milled rice grain length (MGL), and milled rice length-to-width ratio (MLWR) using a recombinant inbred line (RIL) population of F10 and F11 generations derived from a cross between Yuexiangzhan and Shengbasimiao. A high-density genetic map consisting of 2412 bins was constructed by sequencing 184 RILs, spanning a total length of 2376.46 cM. A total of 19 QTLs related to MGL, MGW, and MLWR were detected under two environments. The range of phenotypic variation attributed to individual QTL ranged from 1.67% to 32.08%. Among those, a novel locus for MGL, MGW and MLWR, designated as qMLWR3.2, was pinpointed within a specific ~0.96-Mb region. Two novel loci for MGW and MLWR, qMLWR11.1 and qMLWR11.2, were verified within ~1.22-Mb and ~0.52-Mb regions using three RIL-developed populations, respectively. These findings lay the foundation for further map-based cloning and molecular design breeding in rice. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 13223178 2223-7747 |
| Relation: | https://www.mdpi.com/2223-7747/13/22/3178; https://doaj.org/toc/2223-7747 |
| DOI: | 10.3390/plants13223178 |
| Access URL: | https://doaj.org/article/786d23fb6d5f4325bbd3d498313f563e |
| Accession Number: | edsdoj.786d23fb6d5f4325bbd3d498313f563e |
| Database: | Directory of Open Access Journals |
| ISSN: | 13223178 22237747 |
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| DOI: | 10.3390/plants13223178 |
| Published in: | Plants |
| Language: | English |