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Gametophytic self-incompatibility in Rosaceae fruit trees

100%

Ma C., Qu H.

Acta Scientiarum Polonorum. Hortorum Cultus

2019

tom 18

nr 4

Rosaceae fruit trees are characterized by gametophytic self-incompatibility, with their production typically requiring artificial pollination or pollination tree is required in production. Both of these solutions cause reductions in production efficiency, and self-incompatibility has become a major issue in agricultural biology, and as such, has been extensively studied. In this review, we discuss the relationship between S-RNase content in the style and self-incompatibility, and the role of the SLF gene in stamen-determining factor. Considering mutations in self-compatibility-related genes and self-compatibility in polyploid fruit trees, we discuss the potential mechanisms of self-incompatibility. Based on a preliminary study of the role of pollen tube Ca2+ gradients in self-incompatibility in Pyrus, we propose a new mechanistic model of self-incompatibility taking into account the effect of Ca2+. We also discuss the potential for hormone regulation to be used to control selfincompatibility in Rosaceae fruit trees.

Micropropagation of six Prunus mume cultivars through axillary shoot proliferation, and ISSR analysis of cloned plants

100%

Ning G. G., Fan X. L., Huang W. J., Bao M. Z., Zhang J. B.

Acta Biologica Cracoviensia. Series Botanica

2007

tom 49

nr 1

25-31

Prunus mume is one of the most popular landscape plants In China and Japan. A successful in vitro propagation system for six cultivars of Prunus mume has been developed by in vitro culture of nodal segments from seedling and mature plants. High multiplication rates (from 2.5 to 5.5) were achieved using modified MS media and WPM basic media supplemented with TDZ, BA, IBA, 2,4-D or NAA at concentrations adjusted for each cultivar. All the studied cultivars could be proliferated efficiently on WPM media supplemented with 2.2 µM TDZ, 2.2 µM BA and 2.5 µM IBA. Shoots were rooted on agar-gelled 1/2 MS or WPM basic media containing 2.5 or 5.0 µM IBA, and plantlets were transferred to pots after they had grown more than 3 roots and at least one root was more than 10 mm long. The effects of TDZ, media composition and different genotypes on shoot multiplication and growth were studied in detail. The genetic fidelity of the micropropagated plants from the ’Xuemei’ cultivar was examined using PCR-ISSR markers, and the results demonstrated complete genetic stability in the cloned plants.

Ograniczanie wyników

1 Acta Biologica Cracoviensia. Series Botanica

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Bao M. Z.

1 Fan X. L.

1 Huang W. J.

1 Ma C.

1 Ning G. G.

1 Qu H.

1 Zhang J. B.

1 2019

1 2007

Wyniki wyszukiwania

Gametophytic self-incompatibility in Rosaceae fruit trees

Micropropagation of six Prunus mume cultivars through axillary shoot proliferation, and ISSR analysis of cloned plants