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Genetic and physical mapping of flowering time loci in canola (Brassica napus L.)

Overview of attention for article published in Theoretical and Applied Genetics, September 2012
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Title
Genetic and physical mapping of flowering time loci in canola (Brassica napus L.)
Published in
Theoretical and Applied Genetics, September 2012
DOI 10.1007/s00122-012-1966-8
Pubmed ID
Authors

Harsh Raman, Rosy Raman, Paul Eckermann, Neil Coombes, Sahana Manoli, Xiaoxiao Zou, David Edwards, Jinling Meng, Roslyn Prangnell, Jiri Stiller, Jacqueline Batley, David Luckett, Neil Wratten, Elizabeth Dennis

Abstract

We identified quantitative trait loci (QTL) underlying variation for flowering time in a doubled haploid (DH) population of vernalisation-responsive canola (Brassica napus L.) cultivars Skipton and Ag-Spectrum and aligned them with physical map positions of predicted flowering genes from the Brassica rapa genome. Significant genetic variation in flowering time and response to vernalisation were observed among the DH lines from Skipton/Ag-Spectrum. A molecular linkage map was generated comprising 674 simple sequence repeat, sequence-related amplified polymorphism, sequence characterised amplified region, Diversity Array Technology, and candidate gene based markers loci. QTL analysis indicated that flowering time is a complex trait and is controlled by at least 20 loci, localised on ten different chromosomes. These loci each accounted for between 2.4 and 28.6% of the total genotypic variation for first flowering and response to vernalisation. However, identification of consistent QTL was found to be dependant upon growing environments. We compared the locations of QTL with the physical positions of predicted flowering time genes located on the sequenced genome of B. rapa. Some QTL associated with flowering time on A02, A03, A07, and C06 may represent homologues of known flowering time genes in Arabidopsis; VERNALISATION INSENSITIVE 3, APETALA1, CAULIFLOWER, FLOWERING LOCUS C, FLOWERING LOCUS T, CURLY LEAF, SHORT VEGETATIVE PHASE, GA3 OXIDASE, and LEAFY. Identification of the chromosomal location and effect of the genes influencing flowering time may hasten the development of canola varieties having an optimal time for flowering in target environments such as for low rainfall areas, via marker-assisted selection.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 91 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
New Zealand 2 2%
United Kingdom 1 1%
Germany 1 1%
Unknown 87 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 25 27%
Researcher 18 20%
Student > Master 13 14%
Student > Postgraduate 6 7%
Other 4 4%
Other 10 11%
Unknown 15 16%
Readers by discipline Count As %
Agricultural and Biological Sciences 67 74%
Biochemistry, Genetics and Molecular Biology 5 5%
Unspecified 1 1%
Chemistry 1 1%
Unknown 17 19%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 May 2022.
All research outputs
#7,315,081
of 23,794,258 outputs
Outputs from Theoretical and Applied Genetics
#1,270
of 3,565 outputs
Outputs of similar age
#51,542
of 170,416 outputs
Outputs of similar age from Theoretical and Applied Genetics
#9
of 16 outputs
Altmetric has tracked 23,794,258 research outputs across all sources so far. This one has received more attention than most of these and is in the 68th percentile.
So far Altmetric has tracked 3,565 research outputs from this source. They receive a mean Attention Score of 4.9. This one has gotten more attention than average, scoring higher than 63% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 170,416 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 68% of its contemporaries.
We're also able to compare this research output to 16 others from the same source and published within six weeks on either side of this one. This one is in the 43rd percentile – i.e., 43% of its contemporaries scored the same or lower than it.