Table 1.
H3Pser10 and H3K4me3 staining patterns in seven different nematode species
| Nematode (female) | Phylogenetic distance S. ratti | Gonadal organization similar to Stongyloides | Nematode clade | Lifestyle/mode of reproduction | Distal arm | Gonadal loop | ||
|---|---|---|---|---|---|---|---|---|
| H3Pser10 | H3K4me3 | H3Pser10 | H3K4me3 | |||||
| S. ratti | – | – | IV | Free-living gonochorist | Absent | Present (high) | Present diffusely (nuclear localization distinct from H3K4me3) | Present high |
| S. papillosus | Closest Stongyloides species | Yes | IV | Free-living gonochorist | Absent | Present (high) | Present (entire nucleus) | Present high |
| P. trichosuri | Closest outgroup species | Yes | IV | Free-living gonochorist | Absent | Absent | Absent | Absent |
| Rhabditophanes KR3021 | Closest sister family “Alloionematoda” | Yes | IV | Free-living parthenogen | Absent | Present (high) | Absent | Present |
| Panagrolaimus PS1159 | Panagrolaimidae member | No (similar to C. elegans) | IV | Free-living parthenogen | Present (mitotic cells) | Present | Present (meiotic cells) | Present |
| Panagrellus PS1163 | Panagrolaimidae member | No (similar to C. elegans) | IV | Free-living gonochorist | Present (mitotic cells) | Present | Present (meiotic cells) | Present |
| C. elegans | Farthest species in analysis | No | V | Free-living hermaphrodite | Present (mitotic cells) | Present | Absent | Present |