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Favorable haplotypes and associated genes for flowering time and photoperiod sensitivity identified by comparative selective signature analysis and GWAS in temperate and tropical maize
| Autor: | Zhiwei Li |
| Autor: | Xiaogang Liu |
| Autor: | Xiaojie Xu |
| Autor: | Jiacheng Liu |
| Autor: | Zhiqin Sang |
| Autor: | Kanchao Yu |
| Autor: | Yuxin Yang |
| Autor: | Wenshuang Dai |
| Autor: | Xin Jin |
| Autor: | Yunbi Xu |
| Año: | 2020 |
| ISSN: | 2095-5421 (Print) |
| URI: | https://hdl.handle.net/10883/20816 |
| Formato: | |
| Lenguaje: | English |
| Editor: | Institute of Crop Sciences |
| Copyright: | CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. |
| Tipo: | Article |
| Lugar de publicación: | Netherlands |
| Lugar de publicación: | Elsevier |
| Páginas: | 227-242 |
| Número: | 2 |
| Volumen: | 8 |
| DOI: | 10.1016/j.cj.2019.09.012 |
| Descripción: | On the basis of growing environment, maize can largely be classified into temperate and tropical groups, leaving extensive genetic variation and evolutionary signatures in the maize genome. To identify candidate genes governing flowering time and photoperiod sensitivity, selective signature analysis and SNP- and haplotype-based GWAS were performed using 39,350 high-quality SNP markers in temperate and tropical maize groups consisting of 410 inbred lines phenotyped in three representative experiments in different latitudes. Selective signature analysis revealed 106 selective-sweep regions containing 423 candidate genes involved mainly in biological regulation and biosynthesis pathways. Among these genes, 25 overlapped with known genes governing flowering time and photoperiod sensitivity and 37 were also detected by GWAS for days to tassel, anthesis-silk interval, and photoperiod sensitivity measured by days to silking. Only two of the candidate genes governing flowering time overlapped selective signals. Most haplotype alleles within significant haplotype loci showed the same direction of effect on flowering time and photoperiod sensitivity. The inbred lines carrying GATT at HapL499 (haplotype locus 499) on chromosome 1 had relatively short flowering times. Lines carrying CA at HapL4054 on chromosome 10, TA at HapL4055 on chromosome 10, and GTTGT at HapL978 on chromosome 2 were less sensitive to photoperiod than lines carrying other haplotype alleles. Haplotype loci associated with flowering time and photoperiod sensitivity explained respectively 17.5%?18.6% and 11.2%?15.5% of phenotypic variation. Candidate genes and favorable haplotypes identified in this study may support the more efficient utilization of maize germplasm groups. |
| Agrovoc: | MAIZE |
| Agrovoc: | GENOMES |
| Agrovoc: | FLOWERING |
| Agrovoc: | PHOTOPERIODICITY |
| Notas: | The dataset related with this article is only referential |
| Datasets relacionados: | https://ars.els-cdn.com/content/image/1-s2.0-S2214514119301540-mmc1.docx |
| Revista: | Crop Journal |
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Maize
Maize breeding, phytopathology, entomology, physiology, quality, and biotech