Table 1 Overview of mutant and transgenic lines affected in LR outgrowth and emergence

plt3plt5plt7

Loss in tissue/layer identity from stage II & Reduced number of emerged LRs

LRP patterning and organisation

Du and Scheres, [35]

puchi-1

Additional anticlinal and periclinal cell division in the flanking domain, promotes initiation and clustering of primordia, delay in development and emergence

LRP patterning and morphogenesis

Hirota et al. [68],Trinh et al. [145],Bellande et al. [8]

ahp6

Abnormal pericycle cell divisions orientation at stage I and II

LRP patterning and orientation of cell division

Moreira et al. [105]

atx1-1

Compromised cell proliferation, tissue patterning, enlarged flanking cells delay in outgrowth

LRP patterning, morphogenesis and outgrowth

Napsucialy-Mendivil et al. [109]

myb36-5

Increase in stage IV LRPs, decrease in emerged LR density, More cells at the base and flattened LRPs

LRP morphogenesis and outgrowth

Fernández-Marcos et al. [45]

Atmyb93-1,Atmyb93-2

Increase in stage VII and emerged LRPs, Accelerated outgrowth rate

LR outgrowth and progression

Gibbs et al. [55]

35S::MYC-AtMYB93

Increase in stage I-IV LRPs, slow LR developmental progression and decrease in emerged LR density

tas3a-1

Increase in stage I and II LRPs and shorter LRs

LR outgrowth and progression

Marin et al. [99]

35S::TAS3A

Increase in stage V-VII LRPs and elongated LRs

35S::5MIR156

Decrease in Stage I-IV LRP and increase in emerged LRs

LR outgrowth and progression

Yu et al. [140]

P35S::rSPL3; PSPL9::rSPL9; PSPL10:rSPL10

Increase in Stage I-IV LRP and decrease in emerged LRs

tob1-1

Increased numbers of LRP, emerged LRs, and accelerated growth rates

LRP organogenesis

Michniewicz et al. [101]

prh1-1; prh1-2; prh1-3

Increase in Stage I-IV LRP, decrease in Stage V-VIII LRPs and delayed emergence

LR progression and emergence

Zhang et al. [61]

tmk1-1tmk4-1

Disorganised cell division patterning and no emerged LRs

LRP patterning and emergence

Huang et al. [71]

mkk4,5RNAi-est; mkk4mkk5

Disorganised cell division patterning, Increase in Stage I-IV LRPs and decrease in emerged LRs

Huang et al. [71], Zhu et al. [104]

mpk6 − / − mpk3RNAi-est; MPK3SR and MPK6SR

Disorganised cell division patterning, Increase in Stage I-IV LRPs and decrease in emerged LRs

Huang et al. [71], Zhu et al. [104]

ida

Flattened LRPs, Increase in Stage IV-VII LRPs and decrease in emerged LRs

LR morphogenesis and emergence

Kumpf et al. [80]

haehsl2

Flattened LRPs, Increase in Stage IV-VII LRPs and decrease in emerged LRs

LR morphogenesis and emergence

Kumpf et al. [80]

fra2; lue1; ktn1-2

Disorganised cell division patterning and reduced number of emerged LRs

LR morphogenesis and emergence

Ovečka et al., [113]

d35S::PIP2;1

Flattened LRPs, Increase in Stage II-VII LRPs and decrease in emerged LRs

LR morphogenesis and emergence

Péret et al. [117]

pip2;1-1; pip2;1-2

Flattened LRPs, Increase in Stage II-VII LRPs and decrease in emerged LRs

LR morphogenesis and emergence

ore1-2

Reduced frequency of overlying cell death at Stage I-IV and delayed emergence

LR emergence

Escamez et al. [42]

pdlp5-1

Faster LR emergence and increase in emerged LRs

LR emergence

Sager et al. [127]

PLDLP5OE

Delayed LR emergence and reduced number of emerged LRs

lax3

Increase in Stage I LRP and reduced emergence/decrease in emerged LRs

LR emergence

Swarup et al. [141], Porco et al. [120]

lbd29-1

Increase in Stage I, IV and V LRP and reduced emergence/decrease in emerged LRs

LR emergence

Porco et al. [120]

gLBD29-SRDX

Increase in Stage V LRP and decrease in emerged LRs

lbd18-1

Reduced number of emerged LRs

LR emergence

Lee et al. [87]

Pro35S:LhGR:EXP17RNAi

Reduced number of emerged LRs

LR emergence

Lee and Kim [88]

35S::EXP17

Increase number of emerged LRs