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Table 2 Select elongation-related probe sets showing altered regulation in the Li 1 mutant*

From: Transcript profiling by microarray and marker analysis of the short cotton (Gossypium hirsutum L.) fiber mutant Ligon lintless-1 (Li 1 )

Genes up-regulated in theLi 1 mutant relative to its near isogenic wild type line
Probe ID Annotation 3DPA 12DPA 16DPA Heterologous functions Ref.
Ghi.798.1.S1_s_at 1-aminocyclopropane-1-carboxylate oxidase 2.45 10.95 5.08 GhACO3, ethylene biosynthesis, elongation related [55]
GhiAffx.16665.1.S1_s_at 1-aminocyclopropane-1-carboxylate oxidase homolog 4-like 1.48 2.87 2.54 no homology known  
Ghi.8264.1.S1_s_at brassinosteroid-regulated protein bru1 0.81 4.11 6.99 homology to xyloglucan endotransglcosylase (AT4G14130.1), expression correlates with elongation inhibition [56]
Ghi.5860.1.S1_s_at fasciclin-like arabinogalactan protein 1.10 56.47 0.16 EST from fiber, homology to G. hirs. fasciclin-like arabinogalactan protein 3 (FLA3). AtFLA3 overexpression leads to defective elongation in stamen. [57]
GhiAffx.36662.1.S1_s_at r2r3-myb transcription 1.60 4.25 6.40 At4g37260, MYB73. Highly responsive to ethylene, ABA. Downregulated in fl mutant elonagtion phase. [58, 59]
GhiAffx.60562.1.S1_at ethylene-responsive transcription factor wri1 0.79 0.31 0.26 wri1-1 mutants demonstrate defective elongation of hypocotyl. [60]
Ghi.2039.2.S1_s_at sucrose synthase sus1 35.38 1.60 1.38 GhSus1 isoform C, targeted to cell wall during secondary cell wall synthesis. [61]
Ghi.7911.1.S1_x_at xyloglucan endotransglucosylase hydrolase 0.42 9.24 8.22 TCH4, dwarf A. thaliana mutants have reduced expression, elongation related. [62]
GhiAffx.10621.1.A1_s_at pollen ole e 1 allergen and extensin family protein 1.21 32.53 0.67 Uncharacterized EST  
Genes down-regulated in the Li 1 mutant relative to its near isogenic wild type line
Ghi.8025.1.S1_s_at 1-aminocyclopropane-1-carboxylate oxidase 1.37 0.36 0.32 ACO4, ethylene biosynthesis, induced in ovule culture by fatty acid synthesis, increasing ethylene production and root elongation. [55, 63]
Ghi.6502.1.S1_at 1-aminocyclopropane-1-carboxylate oxidase 1.13 0.63 0.14 EST, significant homology to ACO proteins, but not identical to ACO1-4  
Ghi.5451.1.S1_at 1-aminocyclopropane-1-carboxylate synthase 0.78 0.47 0.88 Highest homology with GhACS 3/6  
GhiAffx.12577.1.S1_at gibberellin 20-oxidase 0.95 0.34 0.15 gibberellin synthesis, stimulated by Auxin treatment in A. thaliana, which also causes hypocotyl cell elongation. Increased expression in transgenic cotton causes increased fiber length. [6466]
Ghi.8087.1.S1_s_at myb-like transcription factor 3 1.32 0.18 0.16 GhMYB3, contains gibberellin responsive GLABROUS1, which promotes trichome formation in A. thaliana. [67, 68]
Ghi.10822.1.S1_at xyloglucan endotransglucosylase hydrolase 1.10 0.41 0.52 GhXTH2, high homology to coding region of GhXTH1 which produces longer fibers when over-expressed in transgenic cotton. [69]
GraAffx.28354.1.S1_s_at rho gtpase activation protein 0.52 0.48 0.78 High homology to ROP1, tip-localized GTPase responsible for cell elongation and polarity. [70]
  1. *Bold and underlined indicates significant at the Bonferroni-corrected 0.05 probability level for microarray data.