A transposon insertion in FLOWERING LOCUS T is associated with delayed flowering in Brassica rapa

A transposon insertion in FLOWERING LOCUS T is associated with delayed flowering in Brassica rapa

Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant science : an international journal of experimental plant biology. - 1985. - 241(2015) vom: 01. Dez., Seite 211-20
1. Verfasser: Zhang, Xueming (VerfasserIn)
Weitere Verfasser: Meng, Lin, Liu, Bo, Hu, Yunyan, Cheng, Feng, Liang, Jianli, Aarts, Mark G M, Wang, Xiaowu, Wu, Jian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Plant science : an international journal of experimental plant biology
Schlagworte:Journal Article Brassica rapa FLOWERING LOCUS T Flowering time Loss-of-function allele Quantitative trait locus (QTL) Plant Proteins
Beschreibung
Zusammenfassung:Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.
Long days and vernalization accelerate the transition from vegetative growth to reproductive growth in Brassica rapa. Bolting before plants reach the harvesting stage is a serious problem in B. rapa vegetable crop cultivation. The genetic dissection of flowering time is important for breeding of premature bolting-resistant B. rapa crops. Using a recombinant inbred line (RIL) population, we twice detected two major quantitative trait loci (QTLs) for flowering time in two different growing seasons that were located on chromosomes A02 and A07, respectively. We hypothesized that an orthologue of the Arabidopsis thaliana FLOWERING LOCUS T (FT) gene, named as BrFT2, was the candidate gene underlying the QTL localized to A07. A transposon insertion in the second intron of BrFT2 was detected in one of the parental lines, which was predicted to generate a loss-of-function allele. Transcription analysis revealed that the BrFT2 transcript was not present in the parental line that harbored the mutated allele. RILs carrying only the mutated BrFT2 allele showed delayed flowering regardless of growing seasons when compared to RILs carrying the wild-type BrFT2 allele. These data suggest that BrFT2 is involved in flowering time regulation in controlling flowering time in B. rapa
Beschreibung:Date Completed 05.10.2016
Date Revised 30.09.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2259
DOI:10.1016/j.plantsci.2015.10.007