IDT for Illumina–TruSeq UD Indexes
The following tables depict plate layouts for IDT for Illumina–TruSeq UD Indexes.
These indexes include IDT for Illumina–TruSeq DNA UD Indexes and IDT for Illumina–TruSeq RNA UD Indexes. These indexes are designed for select TruSeq libraries.
For NextSeq 2000 two-plex pooling, pool two consecutive wells in a column as follows.
• | A and B |
• | C and D |
• | E and F |
• | G and H |
For other systems, pool any plexity ≥ 2 down a column. Do not pool across a row.

1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
---|---|---|---|---|---|---|---|---|---|---|---|---|
A |
UDI0001 |
UDI0009 |
UDI0017 |
UDI0025 |
UDI0033 |
UDI0041 |
UDI0049 |
UDI0057 |
UDI0065 |
UDI0073 |
UDI0081 |
UDI0089 |
B |
UDI0002 |
UDI0010 |
UDI0018 |
UDI0026 |
UDI0034 |
UDI0042 |
UDI0050 |
UDI0058 |
UDI0066 |
UDI0074 |
UDI0082 |
UDI0090 |
C |
UDI0003 |
UDI0011 |
UDI0019 |
UDI0027 |
UDI0035 |
UDI0043 |
UDI0051 |
UDI0059 |
UDI0067 |
UDI0075 |
UDI0083 |
UDI0091 |
D |
UDI0004 |
UDI0012 |
UDI0020 |
UDI0028 |
UDI0036 |
UDI0044 |
UDI0052 |
UDI0060 |
UDI0068 |
UDI0076 |
UDI0084 |
UDI0092 |
E |
UDI0005 |
UDI0013 |
UDI0021 |
UDI0029 |
UDI0037 |
UDI0045 |
UDI0053 |
UDI0061 |
UDI0069 |
UDI0077 |
UDI0085 |
UDI0093 |
F |
UDI0006 |
UDI0014 |
UDI0022 |
UDI0030 |
UDI0038 |
UDI0046 |
UDI0054 |
UDI0062 |
UDI0070 |
UDI0078 |
UDI0086 |
UDI0094 |
G |
UDI0007 |
UDI0015 |
UDI0023 |
UDI0031 |
UDI0039 |
UDI0047 |
UDI0055 |
UDI0063 |
UDI0071 |
UDI0079 |
UDI0087 |
UDI0095 |
H |
UDI0008 |
UDI0016 |
UDI0024 |
UDI0032 |
UDI0040 |
UDI0048 |
UDI0056 |
UDI0064 |
UDI0072 |
UDI0080 |
UDI0088 |
UDI0096 |

1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
---|---|---|---|---|---|---|---|---|---|---|---|---|
A |
UDI0001 |
UDI0009 |
UDI0017 |
UDI0001 |
UDI0009 |
UDI0017 |
UDI0001 |
UDI0009 |
UDI0017 |
UDI0001 |
UDI0009 |
UDI0017 |
B |
UDI0002 |
UDI0010 |
UDI0018 |
UDI0002 |
UDI0010 |
UDI0018 |
UDI0002 |
UDI0010 |
UDI0018 |
UDI0002 |
UDI0010 |
UDI0018 |
C |
UDI0003 |
UDI0011 |
UDI0019 |
UDI0003 |
UDI0011 |
UDI0019 |
UDI0003 |
UDI0011 |
UDI0019 |
UDI0003 |
UDI0011 |
UDI0019 |
D |
UDI0004 |
UDI0012 |
UDI0020 |
UDI0004 |
UDI0012 |
UDI0020 |
UDI0004 |
UDI0012 |
UDI0020 |
UDI0004 |
UDI0012 |
UDI0020 |
E |
UDI0005 |
UDI0013 |
UDI0021 |
UDI0005 |
UDI0013 |
UDI0021 |
UDI0005 |
UDI0013 |
UDI0021 |
UDI0005 |
UDI0013 |
UDI0021 |
F |
UDI0006 |
UDI0014 |
UDI0022 |
UDI0006 |
UDI0014 |
UDI0022 |
UDI0006 |
UDI0014 |
UDI0022 |
UDI0006 |
UDI0014 |
UDI0022 |
G |
UDI0007 |
UDI0015 |
UDI0023 |
UDI0007 |
UDI0015 |
UDI0023 |
UDI0007 |
UDI0015 |
UDI0023 |
UDI0007 |
UDI0015 |
UDI0023 |
H |
UDI0008 |
UDI0016 |
UDI0024 |
UDI0008 |
UDI0016 |
UDI0024 |
UDI0008 |
UDI0016 |
UDI0024 |
UDI0008 |
UDI0016 |
UDI0024 |

This section applies to any instruments using XLEAP-SBS Chemistry.
Two-plex through eight-plex pooling strategies are provided for use of IDT for Illumina TruSeq UD Indexes (96 Indexes, 96 Samples). For more information, refer to Color Balance or contact Illumina Technical Support.
The following table shows index adapters (wells) that can be combined in two-plex through eight-plex pools. For two-plex pools, the listed index pools make sure that green signal is present in every index cycle. For three-plex through eight-plex pools, the following index pools are examples that include two-channel representation in each cycle. Additional options are available that combine samples from multiple columns (three- to six-plex), within the same column (four- to six-plex), or that meet less stringent requirement of at least green signal every index cycle.
Plexity |
Recommended Index Combinations |
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2 |
|
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3 |
|
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4 |
|
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5 |
|
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6 |
|
The following figure displays seven-plex and eight-plex index pooling recommendations by column. Numbers represent plate columns, and letters represent the rows to be paired within each column.
The orange wells in the following color-coded figures are not recommended for use.
IDT for Illumina TruSeq UD Indexes