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Table 1 The kits tested plus the modified CTAB method are listed along with a summary of results

From: A practical examination of RNA isolation methods for European pear (Pyrus communis)

Method

Tissue

d’Anjou peel stored

d’Anjou cortex stored

d’Anjou peel fresh

d’Anjou cortex fresh

Bartlett peel fresh

Bartlett cortex fresh

Gala peel fresh

Gala cortex fresh

Macherey–Nagel

NucleoSpin RNA Plant buffer RAI

Cat # 740949

X

X

Macherey–Nagel

NucleoSpin RNA Plant buffer RAP

Cat # 740949

a

OKc

e

g

Omega E.Z.N.A.

HP Total RNA

Cat # R6812-00

X

Omega E.Z.N.A.

Total RNA

Cat # R6834-00

X

Omega E.Z.N.A.

Plant RNA

Cat # R6827-00

X

Xnr

ThermoFisher

GeneJET Plant RNA

Cat # K0809

OK

X

Qiagen RNeasy

Plus Universal

Cat # 73404

X

Poor

Qiagen RNeasy

Plant buffer RLC

Cat # 74903

Poor

√*

√*

Qiagen RNeasy

Plant buffer RLT

Cat # 74903

OK

X

Zymo ZR

Plant RNA

Cat # R2024

X

X

CTAB

modified from

Gapper et al. [18]

b

d

f

h

  1. Pear fruit that was stored for 11 months is indicated as “stored” and freshly harvested pear and apple fruit is indicated as “fresh”. = RIN ≥7.5, yield per ~100 mg ≥100 ng, OK = RIN ≥7.5 (or with clear 28s and 18s peaks) and yield 10–100 ng, poor = RIN 3–7.5 (or with clear 28s and 18s peaks) and/or yield <10 ng, X = RIN <3 and/or yield below detectable limit, – not tested
  2. Subscript letter indicates panel in Fig. 1
  3. nr not replicated
  4. * Independently validated repeat of published result [10]