No title

11 December 2014 8,571 0 View

Does anyone have experience with the ABI StepOne Real-Time PCR system?

08 September 2014 8,404 4 View

What is the most reliable and affordable technique for transcript profiling eukaryotic plants?

06 July 2014 9,564 2 View

What is virus titer/concentration?

I would like to study the interaction between cassava viruses and a sort of cassava genotypes. I would like to do this by measuring virus concentration. Is it right to call this virus...

05 June 2014 5,791 9 View

Can I use in vitro transcription of cloned cDNA to generate RNA for calibration in a qRT-PCR?

I would like to perform absolute quantification of RNA viruses in plant tissue and was wondering if approaching this through in vitro transcription makes sense.

31 December 2013 601 6 View

Is it possible to allow ambiguity at the 3' end of a primer?

I am trying to design primers for a tomato virus isolate and find that I need to allow two consecutive ambiguous nucleotides for the last two bases at the 3' end.

10 November 2013 2,192 4 View

What is the methodology for absolute quantification of RNA viruses (plant viruses)?

Absolute quantification of (plant infecting) RNA viruses

09 October 2012 8,970 4 View

How do I increase the yield of my PCR product?

Hello, We would like to increase the yield of our PCR product. We are running a series of PCR reactions that is targeting ~1.1kb sequence. We begin each reaction with ~400pg of template DNA...

02 March 2021 4,029 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

No title

Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 View

MiRNA qpcr problem?

Dear All, mirna primer showing some problem in the melting curve? any idea why? As attached is the melting curve. The forward sequence is obtained from miRBase and reverse primer is universal.

28 February 2021 5,008 4 View

Runs of nucleotides in Sanger sequencing?

I performed site directed mutagenesis, transformation, and then I sent out plasmids for Sanger sequencing and found out that there is extension of DNA just before the stop codon. I am not sure...

27 February 2021 547 3 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View