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Published July 12, 2012 | Supplemental Material
Journal Article Open

Similarity of Visual Selectivity among Clonally Related Neurons in Visual Cortex

Abstract

Neurons in rodent visual cortex are organized in a salt-and-pepper fashion for orientation selectivity, but it is still unknown how this functional architecture develops. A recent study reported that the progeny of single cortical progenitor cells are preferentially connected in the postnatal cortex. If these neurons acquire similar selectivity through their connections, a salt-and-pepper organization may be generated, because neurons derived from different progenitors are intermingled in rodents. Here we investigated whether clonally related cells have similar preferred orientation by using a transgenic mouse, which labels all the progeny of single cortical progenitor cells. We found that preferred orientations of clonally related cells are similar to each other, suggesting that cell lineage is involved in the development of response selectivity of neurons in the cortex. However, not all clonally related cells share response selectivity, suggesting that cell lineage is not the only determinant of response selectivity.

Additional Information

© 2012 Elsevier Inc. Accepted 31 May 2012, Available online 11 July 2012. We thank Dr. R. Clay Reid for his support and discussion and Dr. Toshihiko Hosoya and Dr. Satoru Kondo for discussion. We thank Garrett Banks for technical support. We appreciate the technical support from the Research Support Center of the Graduate School of Medical Sciences at Kyushu University. This work was supported by grants from CREST-JST, the Takeda Science Foundation, the Uehara Foundation and Kowa Foundation (to K.O.), and the David and Lucille Packard Foundation (to C.L).

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