Table 1

Detailed description of the mapping populations used for consensus linkage map construction and QTL analysis

Mapping population

Population design

Institution

Population size (number of individuals used for mapping)

Map reference

Number of mapped Gxx EST-SSRs

Traits assessed

Trait reference


ILGI

Lolium perenne, one-way pseudo-testcross (progeny of a cross between a di-haploid and a hybrid F1 plant)

IBERS, UK

183 (183)

[51]

3

Self incompatibility

Plant fertility

Plant morphology

[4]

[7]

[3]


VrnA

Lolium perenne, F2, two-way pseudo-testcross

DJF, DK

184 (172)

[8]

138

Vernalization response

Crown rust resistance Powdery mildew

Seed yield

[8]

[9]

[10]

[11]


pop8490

Lolium perenne, F1, two-way pseudo-testcross

INRA, F

185(185)

[12,13]

40

Plant morphology

Crown rust resistance

[12]


WSC

Lolium perenne, F2 (selfings of a single hybrid, obtained by crossing two partially inbred plants)

IBERS, UK

188 (188)

[32]

4

Water-soluble carbohydrates (sucrose, glucose and fructose)

Plant fertility

[15]

[7]


TC1*SB2

Lolium perenne, F1, two-way pseudo-testcross

ILVO, B

281 (281)

[16]

1

Crown rust resistance

[16]

[25]


lpOA

Lolium perenne, F1, two-way pseudo-testcross

ILVO, B

147 (147)

Unpublished data

44

Crown rust resistance

Seed set

Unpublished data


ZX

Lolium perenne, one-way pseudo-testcross (progeny of a cross between a di-haploid plant and LTS01)

PRI, NL

90 (90)

[17]

7

Nitrogen use efficiency

[17]


F2 biomass

Lolium perenne, F2 (selfings of a single hybrid, obtained by crossing two partially inbred plants)

TEAGASC, IRL

366 (363)

[43]

19

Segregation distortion

Biomass

[43]

[18]


Xtg-ART

Lolium multiflorum, F1, two-way pseudo-testcross

ART, CH

306 (96)

[19]

109

Bacterial wilt

Crown rust resistance

[19]

[23]


Mapping data of VrnA, Xtg-ART, lpOA, pop8490, F2 biomass, WSC and ILGI were combined for map integration and used for the construction of the ryegrass consensus map. The Lolium multiflorum Xtg-ART and the Lolium perenne TC1*SB2 were used to compare QTL for crown rust resistance.

Studer et al. BMC Plant Biology 2010 10:177   doi:10.1186/1471-2229-10-177

Open Data