TABLE 1

Pollen tube growth following compatible and incompatible pollinations of Solanum lycopersicoides and interspecific Solanum hybrids

Pistil genotypePollen genotypeLength of longest tube (% of style)Location of rejectionNo. tubes in ovaries
S. lycopersicoides LA2951S. lycopersicoides LA2951 (self)50.2 ± 2.76Style0
S. lycopersicoides LA2951 (sib)100N/A>50
S. pennellii LA0716100N/A4.9 ± 2.91
S. lycopersicum cv. VF-365.6 ± 1.88Stigma0
S. lycopersicum (ui1.1)5.3 ± 0.67Stigma0
S. lycopersicum (ui6.1)4.7 ± 1.52Stigma0
S. lycopersicum (ui1.1 + ui6.1)10.9 ± 0.96Stigma/style0
S. lycopersicum × S. lycopersicoides (diploid hybrid 90L4178)S. lycopersicoides LA2951100N/A>50
S. pennellii LA0716100N/A>50
S. lycopersicum cv. VF-3616.6 ± 1.86Style0
S. lycopersicum (ui1.1)13.7 ± 0.71Style0
S. lycopersicum (ui6.1)15.3 ± 3.14Style0
S. lycopersicum (ui1.1 + ui6.1)42.3 ± 14.5Style0
S. lycopersicum × S. lycopersicoides (allotriploid hybrid GH266)S. lycopersicoides LA2951100N/A>50
S. pennellii LA0716100N/A>50
S. lycopersicum cv. VF-3647.8 ± 4.93Style0
S. lycopersicum (ui1.1)45.9 ± 6.40Style0
S. lycopersicum (ui6.1)53.0 ± 11.4Style0
S. lycopersicum (ui1.1 + ui6.1)100N/A>50
  • Pollen compatibility is indicated by the length of the longest pollen tube expressed as a percentage of the total length of the style and stigma (a value of 100% indicates a compatible cross). Values are the averages (±SE) of at least 3 replicate pistils for each cross. On the female side, the genotypes were S. lycopersicoides, and diploid and allotriploid F1 S. lycopersicum × S. lycopersicoides hybrids. On the male side, crosses were made with pollen from S. lycopersicoides, S. lycopersicum, S. pennellii, and bridging lines containing the ui1.1 and/or ui6.1 factors from S. pennellii introgressed into cultivated tomato. These genotypes are described in materials and methods.