Journal
THEORETICAL AND APPLIED GENETICS
Volume 123, Issue 4, Pages 625-633Publisher
SPRINGER
DOI: 10.1007/s00122-011-1612-x
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Funding
- 973 project [2011CB100600]
- National Natural Science Foundation of China [30971997, 30921002]
- Research Fund for the Doctoral Program of Higher Education of China [4010-081023]
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Trichomes are small hairs that originate from the epidermal cells of nearly all land plants, and they exist in unicellular and multicellular forms. The regulatory pathway of unicellular trichomes in Arabidopsis is well characterized. However, little is known about the multicellular trichome formation in tomato (Solanum lycopersicum). The woolly (Wo) gene controls multicellular trichome initiation and leads to embryonic lethality when homozygous in tomato. To clone and characterize Wo, the gene was fine-mapped to a DNA fragment of similar to 200 kb using the map-based cloning strategy. A series of sequence-based molecular markers, including simple sequence repeat, sequence characterized amplified region, and cleaved amplified polymorphic sequence were utilized in this study. Analysis of the sequence indicated that this region carries 19 putative open reading frames. These results will provide not only the important information for the isolation and characterization of Wo but also the starting point for studying the regulatory pathway responsible for trichome formation and embryonic lethality in tomato.
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