MGNA-C494 (yqxN::erm), available at the [https://shigen.nig.ac.jp/bsub/resource/strainGeneDisrupted/detail/2492 NBRP B. subtilis, Japan]

1A892 ( ''recO''::''cat''), [Pubmed|10323239], available at [http://pasture.asc.ohio-state.edu/BGSC/getdetail.cfm?bgscid=1A892&Search=1A892 BGSC]

BG128 (Δ[[gene|recO]]::cat), available in [SW|Juan Alonso]'s and [SW|Jörg Stülke]'s labs [pubmed|9642195]

BP738 ( Δ''recO''::''tet''), (available in [SW|Fabian Commichau]'s lab)

BP774 ( Δ''recO''::''ermC''), (available in [SW|Fabian Commichau]'s lab)

BKE25280 (Δ[[gene|recO]]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE25280 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATTTCCGCACCTTCCTCAA, downstream forward: _UP4_TGACATTTGGTCCATCTTTT

BKK25280 (Δ[[gene|recO]]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK25280 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATTTCCGCACCTTCCTCAA, downstream forward: _UP4_TGACATTTGGTCCATCTTTT

MGNA-C494 (yqxN::erm), available at the [https://shigen.nig.ac.jp/bsub/resource/strainGeneDisrupted/detail/2492 NBRP B. subtilis, Japan]

1A892 ( ''recO''::''cat''), [Pubmed|10323239], available at [http://pasture.asc.ohio-state.edu/BGSC/getdetail.cfm?bgscid=1A892&Search=1A892 BGSC]

BG128 (Δ[[gene|recO]]::cat), available in [SW|Juan Alonso]'s and [SW|Jörg Stülke]'s labs

BP738 ( Δ''recO''::''tet''), (available in [SW|Fabian Commichau]'s lab)

BP774 ( Δ''recO''::''ermC''), (available in [SW|Fabian Commichau]'s lab)

BKE25280 (Δ[[gene|recO]]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE25280 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATTTCCGCACCTTCCTCAA, downstream forward: _UP4_TGACATTTGGTCCATCTTTT

BKK25280 (Δ[[gene|recO]]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK25280 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATTTCCGCACCTTCCTCAA, downstream forward: _UP4_TGACATTTGGTCCATCTTTT