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Table 2 Summary of the localization of 12 RFamide genes in the CG and ST/IT

From: RFamidergic neurons in the olfactory centers of the terrestrial slug Limax

 

Abundance and distribution in the CG (Fig. 3)

Right-left symmetry (Fig. 3)

Characteristic expression pattern in the CG (Fig. 3)

Abundance and distribution in the ST/IT (Figs. 4 & 5)

FMRFamide

Many in the dorsal aspect of the CG. No positives in the PC

Asymmetrical (A cluster of neurons in the ventro-posterior region of the right CG)

A pair of large neurons (probably C3 motor neurons, [9]) in the dorso-anterior aspect of the PC

Scattered in the marginal area, away from the digit

LFRFamide1

Many in the CG (including the PC)

Symmetrical

A pair of large neurons at the basal region of the PC

Expressed in a majority of neurons in the cell mass at the basal region

LFRFamide2

Many in the CG (especially abundant the PC cell mass layer)

Symmetrical

A pair of large neurons at the basal region of the PC

Many along the borderline between the digits and neuropiles

CCK/SK1

Many in the basal region of the PC

Symmetrical

 

Found in the apical region

CCK/SK2

Most of the positives were localized to the CG other than the PC

Asymmetrical (Two neurons in the dorsal aspect of the left CG)

A pair of positives at the basal region of the PC

No positives in the ST/IT

NP-F1

Most of the positives were localized to the CG other than the PC

Asymmetrical (One large and one small positives located in the dorsal aspect of the respective right and left CG)

A pair of positives at the basal region of the PC

Localized primarily in the cell mass in and near the digits

NP-F2

Expression in seemingly all the PC neurons, and in several neurons in the other CG regions

Symmetrical

Conspicuous signals aligned in two rows in the PC

Localized to near the apical region

pedal peptide

Many positives in the PC, and a smaller number in the other CG regions

Symmetrical

Many positives along the edge of the cell mass and terminal mass layers of the PC

Localized to the digits cell mass, with some positives found in the putative photoreceptors of an eye

FaRP-A

A small number in the CG, but none in the PC

Asymmetrical (a culster located in the dorsal aspect of the right CG)

A small number of positives

No positives in the ST/IT

FaRP-B

Only 3 pairs of positives in the CG, including one pair in the basal region of the PC

Symmetrical

All 6 positives reside in the dorsal aspect

No positives in the ST/IT

luqin1

Positive neurons in the mesocerebrum, dorsal aspect of the metacerebrum, and in the basal region of the PC

Asymmetrical (larger number in the right mesocerebrum)

Many large positives in the mesocerebrum.

Scattered in the cell mass at the basal region, and also in the apical region

luqin2

A cluster of 5–9 positives in the dorsal aspect of the matacerebrum, and a cluster of 5–7 positives in the basal region of the PC

Symmetrical

No positives in the ventral aspect

A few positives in the anterior to an eye in the ST, whereas no positives in the IT