Medicago truncatula gene nomenclature

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List of M. truncatula Mutant Gene Symbols

(references refer to initial, descriptive publications-for a complete, current literature search, click here)

Gene Name Symbol Name Locus Number Mutant Phenotype Alleles Mapping or Allelism Data Reference Lab Date Submitted /Updated References
BIP bi pistil - two pistils: one develops into a normal shaped pod, while the second pistil shows much reduced size and rate of growth - not allelic to tap Nair, Dundas & Randles 3-06 -
BIT branching infection threads - defective infection threads that abort in the outer epidermis or cortex - see ERN Long & Oldroyd 6-02 -
CMD calcium morphology defective CMD1 crystals are odd shaped and sporatic - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD2 crystals are odd shaped - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD3 crystals are odd shaped and smaller - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD4 crystals are rectangular - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD5 crystals are small - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD6 crystals appear longer & thinner, kinked - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
CMD7 crystals are mostly normal with a few diamond shaped - not allelic to other cmd mutants Nakata 11-03 McConn & Nakata (2002)
COD calcium oxalate defective COD1 crystals are shaped like diamonds - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD2 crystals are long and thin - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD3 crystals are shaped like diamonds, thinner, and appear in other cells - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD4 crystals are normal in the veins but also occur in other cells - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD5 there are no obvious crystals in the veins - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD6 crystals are small - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)
COD7 crystals appear to form multiple times in a cell - not allelic to other cod mutants Nakata 11-03 Nakata & McConn (2000)

DMI

doesn't make infections
DMI1 non-nodulating and non-mycorrhizal; recessive details 3 LG 2; ion channel Cook 5-00

Catoira et al. 2000

Wais, et. al. 2000

Penmetsa & Cook 1997

DMI2 " 4 LG 5; receptor-like kinase Dénarié

VandenBosch

4-01

Catoira et al. 2000

Wais, et. al. 2000

DMI3 " 2 LG 8; Calcium calmodulin dependent protein kinase Dénarié -

Catoira et al. 2000

Wais, et. al. 2000

DNF defective in nitrogen fixation DNF1 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF2 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF3 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF4 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF5 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF6 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
DNF7 Nod+ Fix- - not allelic to other DNFs Long 6-02 Starker et al. 2006
ERN ERF required for nodulation ERN rename of bit & pdl mutants 2 ERF transcription factor LG7 Long & Oldroyd 8-07 Middleton et al. 2007
ESN1 Early Senescent Nodule ESN1 Fix-, early senescence - ? Chen 5-13 Xi, et al., 2013
HCL defective in root hair curling - Nod-, Hac-, but deformation & cortical divisions induced by rhizobia

details

- not allelic to dmi1, dmi2, dmi3 or nsp Dénarié 4-01

Wais, et. al. 2000

Catoira, et al. 2001

LATD lateral root organ defective - short primary root, stumpy lateral roots, Fix- nodules - top of LG1 (tightly linked to R15J11L). May be allelic to NIP Harris 11-03 Bright et al. 2005
LFM leaf marks - presence of brown marks on cv. Jemalong leaves

in Jemalong x DZA315.16, this trait is monogenic with "absence of marks", which is dominant to "presence of marks"

- LG7;allelic to "absence of marks"-see phenotype Huguet

(UMR 215)

10-01 -
LIN lumpy infections - arrested rhizobial infections; non-nodulating; recessive

details

- not allelic to dmi1 or pdl Cook 5-00 Kuppusamy, et al. 2004
LSS like sunn supernodulator - hypernodulator; shoot control of phenotype, dominant interaction with sunn - not allelic to sunn (sunn seq is wt) LG 4 Long & Frugoli 5-06
NIP numerous infections with polyphenolics - more infection threads in nodule primordia, rhizobia fail to enter host plant cells and are contained in infection threads; accumulation of polyphenolic compounds in nodule bumps on roots. - not allelic to dmi1,2,nsp,lin,rit,bit, sym1,dnf1,3,6,7

preliminary tests also not allelic to dnf2,4,5

Dickstein 9-03 Veereshlingam, et al. 2004
NFP Nod factor perception - Nod - ; defective in NF induced nodulin gene expression, root hair deformation, calcium spiking and NF induced rapid calcium flux. Mycorrhizal phenotype is wt - top of LG5; not allelic to dmi1, dmi2, dmi3, nsp1, nsp2 or hcl Dénarié 2-03 Ben Amor, et al, 2003
 NSP  nodulation signaling pathway NSP1

Nod-, Hac-

details

2 not allelic to dmi1, dmi2, dmi3 or hcl Dénarié 4-01 Catoira et al. 2000

Wais, et. al. 2000

NSP2 defective in Nod factor induction of gene expression, root hair deformation, cortical cell division and bacterial infection. Shows NF induced calcium spiking 3 LG3 Long & Oldroyd 6-02 Kalo, et. al. 2005
PDL poodle-like root hair clusters - arrested rhizobial infections; non-nodulating; recessive

details

- see ERN Cook 5-00 -
PLM palmyra - shoot meristem initiation defective; recessive

details

- - Cook 5-00 Penmetsa & Cook 2000
RAE restores autoregulation. not elongation - supresses hypernodulation defect of sunn-1 allele, not root length defect - LG4 Frugoli 5-06
RAZ requires additional zinc - necrotic lesions on leaves; shoot hyperaccumulation of Zn and Mn; normal leaves with growth on elevated Zn, recessive - - Grusak 8-01 Ellis, et al. 2003-
RDN1 root determined nodulation - hypernodulator; recessive, root control of phenotype 4 LG 5 Long & Frugoli 6-13 Schnabel, et al. 2011
RIT root hairs, infection threads, trichomes - defective in root hairs, infection threads and trichomes - LG 3 Long & Oldroyd 6-02 -
SPC sense of pod coiling - natural variant determines the sense of pod coiling (clockwise/counterclockwise)

clockwise is dominant

-

LG 7 Huguet

(UMR 215)

5-01 Thoquet et al (2002)
SKL sickle - hypernodulator; ethylene insensitive; recessive

root

- Not allelic to sunn; linked to molecular marker SLR1 on LG7 Cook 5-00

Penmetsa & Cook 1997

SLI sluggish infections - nodule development defective; mutant nodules have infection threads that reach the primordia - Not allelic to sym1 Dickstein 4-03 -
SPK speckle -

details-root

spontaneous necrotic lesions

details-leaf

- - Cook 5-00 Penmetsa & Cook 2000
SUNN supernumerary nodules - hypernodulator; semi-dominant, shoot control of phenotype

details

5 LG4; LRR receptor kinase like CLV1 Cook & Frugoli 5-00 Penmetsa, et al. 2003
SYM Medicago truncatula symbiotic gene SYM 1

(TE7)

Nod+ Fix-

- - Huguet 10-03 Beneben, et al 1995
SYM6 deficient for nitrogen fixation after inoculation with S. meliloti A145 - LG8 Huguet

(UMR 215)

5-01 Tirichine, et al. 2000
TAP M. truncatula apetalla - Class B floral homeotic; male sterile; recessive

details

- - Cook 5-00 Penmetsa & Cook 2000