Displaying G2-like Family from Maize


INFORMATION ABOUT G2-like FAMILY

In the C4 plant maize, three photosynthetic cell types differentiate: C4 bundle sheath, C4 mesophyll, and C3 mesophyll cells. C3 mesophyll cells represent the ground state, whereas C4 bundle sheath and C4 mesophyll cells are specialized cells that differentiate in response to light-induced positional signals. The Golden2 (G2) gene regulates plastid biogenesis in all photosynthetic cells during the C3 stages of development. However, G2 function is specifically committed to the differentiation of bundle sheath cell chloroplasts in C4 leaf blades. In this article, we report the isolation of G2-like (Glk) genes from maize and rice, providing evidence for a family of Glk genes in plants. The expression profiles of the rice Glk genes suggest that these genes may act redundantly to promote photosynthetic development in this C3 species. In maize, G2 and ZmGlk1 transcripts accumulate primarily in C4 bundle sheath and C4 mesophyll cells, respectively, suggesting a specific role for each gene in C4 differentiation. We show that G2 and ZmGLK1 both can transactivate reporter gene transcription and dimerize in yeast, which supports the idea that these proteins act as transcriptional regulators of cell-type differentiation processes.


Protein Name
accepted / suggested
Gene Locus Synonym/
Gene Name
Clone in TFome Genome Browser
ZmGLK1 GRMZM2G064197 GLK101 pUT3396 View in Browser
ZmGLK2 GRMZM2G333083 GLK2 View in Browser
ZmGLK3 GRMZM2G471600 GLK3 View in Browser
ZmGLK4 GRMZM2G159119 GLK4 View in Browser
ZmGLK5 GRMZM2G016370 GLK5 pUT3378 View in Browser
ZmGLK6 GRMZM2G117193 GLK6 pUT3379 View in Browser
ZmGLK7 GRMZM2G173943 GLK7 pUT3140 View in Browser
ZmGLK8 GRMZM2G171468 GLK8 pUT3125 View in Browser
ZmGLK9 AC234520.1_FG003 GLK9 pUT6233 View in Browser
ZmGLK10 GRMZM2G083472 GLK10 View in Browser
ZmGLK11 AC233960.1_FG003 GLK11 pUT6053 View in Browser
ZmGLK12 GRMZM2G401835 GLK12 View in Browser
ZmGLK13 GRMZM2G087804 G2 pUT5628 View in Browser
ZmGLK14 GRMZM2G348238 GLK14 View in Browser
ZmGLK15 GRMZM2G162409 GLK15 pUT3420 View in Browser
ZmGLK16 GRMZM2G035370 GLK16 View in Browser
ZmGLK17 GRMZM2G006477 GLK17 pUT3372 View in Browser
ZmGLK18 GRMZM2G010920 GLK18 pUT3338 View in Browser
ZmGLK19 GRMZM2G396825 GLK19 View in Browser
ZmGLK20 GRMZM2G106185 GLK20 pUT4718 View in Browser
ZmGLK21 GRMZM2G082264 MWP1 pUT6260 View in Browser
ZmGLK22 GRMZM2G315506 GLK22 View in Browser
ZmGLK23 GRMZM2G039074 GLK23 pUT3368 View in Browser
ZmGLK24 GRMZM2G060485 GLK24 pUT1502 View in Browser
ZmGLK25 AC234155.1_FG002 GLK25 View in Browser
ZmGLK26 GRMZM2G009060 GLK26 View in Browser
ZmGLK27 GRMZM2G173882 GLK27 View in Browser
ZmGLK28 GRMZM2G100176 GLK28 View in Browser
ZmGLK29 GRMZM2G070865 GLK29 View in Browser
ZmGLK30 GRMZM2G374986 GLK30 View in Browser
ZmGLK31 GRMZM2G100709 GLK31 View in Browser
ZmGLK32 GRMZM2G454449 GLK32 View in Browser
ZmGLK33 AC219020.4_FG002 GLK33 View in Browser
ZmGLK34 GRMZM2G081671 GLK34 pUT6200 View in Browser
ZmGLK35 GRMZM5G846506 GLK35 View in Browser
ZmGLK36 GRMZM2G125704 GLK36 pUT3339 View in Browser
ZmGLK37 GRMZM2G069525 GLK37 pUT3340 View in Browser
ZmGLK38 GRMZM2G113742 GLK38 pUT3341 View in Browser
ZmGLK39 GRMZM2G477238 GLK39 pUT4717 View in Browser
ZmGLK40 GRMZM2G056400 KAN1 pUT3342 View in Browser
ZmGLK41 GRMZM2G090230 GLK41 pUT6263 View in Browser
ZmGLK42 GRMZM2G370425 GLK42 pUT4959 View in Browser
ZmGLK43 GRMZM2G701218 GLK43 View in Browser
ZmGLK44 GRMZM2G124540 GLK44 pUT6201 , pUT6202 View in Browser
ZmGLK45 GRMZM2G379656 GLK45 pUT4191 View in Browser
ZmGLK46 GRMZM2G175827 KAN3 pUT3087 View in Browser
ZmGLK47 GRMZM2G060834 GLK47 pUT3369 View in Browser
ZmGLK48 GRMZM5G887276 GLK48 pUT1158 , pUT3230 View in Browser
ZmGLK49 GRMZM2G168002 GLK49 pUT3348 View in Browser
ZmGLK50 GRMZM2G034563 GLK50 View in Browser
ZmGLK51 GRMZM2G398055 GLK51 pUT3347 View in Browser
ZmGLK52 GRMZM2G124495 GLK52 pUT3371 View in Browser
ZmGLK53 GRMZM2G052544 GLK53 pUT6198 View in Browser
ZmGLK54 GRMZM2G074908 GLK54 View in Browser
ZmGLK55 GRMZM2G123308 GLK55 pUT3358 View in Browser
ZmGLK56 GRMZM2G067702 GLK56 pUT6199 View in Browser
ZmGLK57 GRMZM2G026833 GLK1 pUT3357 View in Browser
ZmGLK58 GRMZM2G117854 GLK58 pUT3343 View in Browser
ZmGLK59 AC155434.2_FG005 GLK59 pUT3417 View in Browser