Evidence map›Paper›PMID 31046671›Full record

ArticleBMC plant biology2019

Photoperiod sensitivity of Canadian flax cultivars and 5-azacytidine treated early flowering derivative lines.

Jia Sun, Lester W Young, Megan A House, Ketema Daba, Helen M Booker

Open access · goldAbstract read
In one paragraph

Article in BMC plant biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 32% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jia SunPresent Address: Department of Plant Science, University of Manitoba, 66 Dafoe Road, Winnipeg, MB, R3T 2N2, Canada.
Lester W YoungDepartment of Plant Sciences, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada.
Megan A HouseDepartment of Plant Sciences, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada.
Ketema DabaDepartment of Plant Sciences, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada.
Helen M BookerDepartment of Plant Sciences, University of Saskatchewan, 51 Campus Dr, Saskatoon, SK, S7N 5A8, Canada. helen.booker@usask.ca.ORCID http://orcid.org/0000-0001-9441-4471
University of Saskatchewan · CAUniversity of Manitoba · CA

Funding

Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada CRDPJ 469747-14Ministry of Agriculture - Saskatchewan 20110233SeCan CRDPJ 469747-14
6 · The paper itself

Abstract

backgroundEarly flowering and maturing flax (Linum usitatissimum L.) cultivars are better adapted than lines with a longer reproductive phase for the short growing season of the northern Canadian Prairies. We examined the role of long days (LD) and short days (SD) on the time taken to flower in five established flax cultivars and three mutant-derived F

resultsThe genotypes tested had varying degrees of photoperiod sensitivity and demonstrated reduced time to flowering if exposed to LD environments prior to a critical time point. The duration of each of the three phases of vegetative growth differed among the genotypes studied. Transfers from SD to LD shortened the vegetative stage, reduced time to flowering, and extended the reproductive phase in the genotypes studied. Mutant-derived lines RE1/2/3 flowered significantly earlier compared to CDC Sorrel, CDC Bethune, Flanders, Prairie Thunder, and Royal. Modelling of the flowering times indicated that transferring the cultivars from SD to LD increased the photoperiod sensitive time; however, different reproductive phases for mutant lines were not defined as parsimonious models were not identified. Expression of the putative flax homologs for CONSTANS (CO), FLOWERING LOCUS T (FT), and GIGANTEA (GI) was examined in the leaves of Royal and RE1/2/3 plants at 10, 15, 19 and 29 days after planting. Expression of putative FT homologs was detected in all three early-flowering lines but expression was negligible, or not detected, in Royal.

conclusionsModels defining the three phases of reproductive development were established for the five cultivars studied; however, it was not possible to identify these phases for the three early flowering and photoperiod insensitive epimutant-derived lines. A putative flax homolog of FT, a key regulator of flowering time, is more highly expressed in RE plants, which may condition the day-length insensitivity in the early flowering 'epimutant' lines.

Indexed as

PhotoperiodAzacitidineFlaxFlowersAzacitidineFlaxFlowering timePhotoperiod sensitivity

Identifiers

PMID31046671
PMCPMC6498464
OpenAlexW2947730954

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.