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Herbicide-resistant cotton (Gossypium hirsutum) plants: an alternative way of manual weed removal

Overview of attention for article published in BMC Research Notes, September 2015
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Title
Herbicide-resistant cotton (Gossypium hirsutum) plants: an alternative way of manual weed removal
Published in
BMC Research Notes, September 2015
DOI 10.1186/s13104-015-1397-0
Pubmed ID
Authors

Ayesha Latif, Abdul Qayyum Rao, Muhammad Azmat Ullah Khan, Naila Shahid, Kamran Shehzad Bajwa, Muhammad Aleem Ashraf, Malik Adil Abbas, Muhammad Azam, Ahmad Ali Shahid, Idrees Ahmad Nasir, Tayyab Husnain

Abstract

Cotton yield has been badly affected by different insects and weed competition. In Past Application of multiple chemicals is required to manage insects and weed control was achieved by different conventional means, such as hand weeding, crop rotation and polyculture, because no synthetic chemicals were available. The control methods shifted towards high input and target-oriented methods after the discovery of synthetic herbicide in the 1930s. To utilise the transgenic approach, cotton plants expressing the codon-optimised CEMB GTGene were produced in the present study. Local cotton variety CEMB-02 containing Cry1Ac and Cry2A in single cassette was transformed by synthetic codon-optimised 5-enolpyruvylshikimate-3-phosphate synthase gene cloned into pCAMBIA 1301 vector under 35S promoter with Agrobacterium tumifaciens. Putative transgenic plants were screened in MS medium containing 120 µmol/L glyphosate. Integration and expression of the gene were evaluated by PCR from genomic DNA and ELISA from protein. A 1.4-kb PCR product for Glyphosate and 167-bp product for Cry2A were obtained by amplification through gene specific primers. Expression level of Glyphosate and Bt proteins in two transgenic lines were recorded to be 0.362, 0.325 µg/g leaf and 0.390, 0.300 µg/g leaf respectively. FISH analysis of transgenic lines demonstrates the presence of one and two copy no. of Cp4 EPSPS transgene respectively. Efficacy of the transgene Cp4 EPSPS was further evaluated by Glyphosate spray (41 %) assay at 1900 ml/acre and insect bioassay which shows 100 %mortality of insect feeding on transgenic lines as compared to control. The present study shows that the transgenic lines produced in this study were resistant not only to insects but also equally good against 1900 ml/acre field spray concentration of glyphosate.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 30 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 30 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 6 20%
Student > Ph. D. Student 5 17%
Student > Master 5 17%
Researcher 3 10%
Other 2 7%
Other 4 13%
Unknown 5 17%
Readers by discipline Count As %
Agricultural and Biological Sciences 13 43%
Environmental Science 4 13%
Biochemistry, Genetics and Molecular Biology 3 10%
Unspecified 2 7%
Veterinary Science and Veterinary Medicine 1 3%
Other 2 7%
Unknown 5 17%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 25 September 2015.
All research outputs
#20,292,660
of 22,829,083 outputs
Outputs from BMC Research Notes
#3,560
of 4,264 outputs
Outputs of similar age
#228,664
of 272,396 outputs
Outputs of similar age from BMC Research Notes
#132
of 173 outputs
Altmetric has tracked 22,829,083 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,264 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.5. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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 272,396 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 173 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.