SAA

SAADL, SAADR, SAAVL, SAAVR

Type: Interneuron, (sublateral) motor neuron
Connectivity:
- In MoW: SAA
- In WormWiring: SAADL_h, SAADR_h, SAAVL_h, SAAVR_h, SAADL_m, SAADR_m, SAAVL_m, SAAVR_m
- In Nemanode: SAA
In Wormbase: SAA, SAADL, SAADR, SAAVL, SAAVR
Lineage: AB alppapapa, AB arapppapa,
AB plpaaaaaa, AB prpaaaaaa
Location: Head
Description: SAA neurons send their processes anteriorly within the sublateral cords in the head
Neurotransmitter/ Neuropeptide:
- Acetylcholine
- PDF-1; pigment dispensing factor homolog
(Barrios et al., 2012; Loer and Rand, 2022; Duerr et al., 2008; Rand and Nonet, 1997-Appendix 2)
Innexin expression:
- INX-1a
- INX-1b
- INX-2
- INX-10a
- INX-14
- UNC-7
- UNC-9
(Bhattacharya et al., 2019)
Receptor expression:
Function:
Reporters:
- At CGC:
- Other:

Click here for larger version
SAADL (AB alppapapa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SAADL; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

Click here for larger version
SAADR (AB arapppapa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SAADR; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

Click here for larger version
SAAVL (AB plpaaaaaa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SAAVL; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

Click here for larger version
SAAVR (AB prpaaaaaa) development in the embryo. Dorsal view. Bottom is left side of the embryo. Spheres indicate individual nuclei. Black sphere: ancestors of SAAVR; dark grey spheres: apoptotic cells; other cells follow the WA color code (after they acquire specific cell or tissue identities). 0 min is fertilization. Click on the movie for higher resolution rendition (by A. Santella & Z. Bao).

Last Revision: July 26, 2025