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At present, there are few research reports on the development of large and small spores of Zingiberaceae plants. They are only found in the genus Chrysospora of the genus Sophora, the genus Glycyrrhiza and the genus Ginger of the genus Ginger of the genus Polygonum, and the microspores involved in the paper are Captured by a quantitative air flow spore catcher.
The development of anther wall in Zingiberaceae is a basic type, and the tapetum is a secretory type. Microspore mother cell meiosis is continuous, mature pollen is 2. Cells or 3. Cell pollen: inverted ovule, thick heart, double beads. The embryo sac develops into a pupa type. The results of our study showed that the ginger leaves anthers 2 rooms. The development of the drug wall is a basic type, the tapetum is a secretory type, the meiosis of the microspore mother cell is a continuous type, and the microspore tetrad is a symmetrical type. Mature pollen grains are 2-cell type: lower ovary, 3 rooms. Most ovules, inverted, with double beads, thick heart. In the axile placenta, the megaspore mother cell forms a linear or T-shaped tetramer by meiosis, and the embryo sac develops a pod-type. This is basically the same as other reported species of Gingeraceae. The developmental types are very similar, reflecting the phylogenetic consistency among all species of Gingeraceae, indicating that they share a common ancestor. This is also consistent with the embryonic characteristics of Ginger (thick pearl heart, double beaded sac, and the development of the embryo sac mainly pupa type), indicating that Ginger may be a natural taxon, originating from a common ancestor.
The current debate about the position of Loquat ginger system. The main focus is on the genus Euphorbia and Hawthorn. From the main characteristics of anthers and embryo sac. The embryological characteristics of Ginger Leaf Ginger are similar to those of Ginger Ginger (published in another article): The tapetum development is secretory and the inner wall fiber is thickened. The epidermis of the drug wall is present, and the cytoplasmic division of the microspore mother cell is continuous, the axial placenta, and the embryo sac develop into a pupa type. The embryonic characteristics of Ginger Leaf Ginger differ greatly from Hainan Sanqi (the other article is published), such as Hainan Sanqi tapetum cell 2 core, drug interior wall 2 layer, middle layer 1, and microspore tetrad shape shape Symmetrical or cross-shaped, tapetum is deformed. Eames believes that the deformed tapetum is a primitive trait. The secretory tapetum is an evolutionary feature. According to this point of view, it can be deduced that Hainan Sanqi is a more primitive group, and Zongye Jiang and Huanghua Daxie are more evolutionary groups. Although they are similar in many respects, they have some differences at the same time:
The mature pollen of G. oleifera is a 3-cell type, while the G. lucidum is a 2-cell type. 2 The cell pollen grains are a relatively primitive trait, and the 3 cell pollen is produced by the evolution of 2-cell pollen. It can be seen that G. sibiricus is a more evolved taxa than G. lucidum, but this is inconsistent with the findings of Liao Jingping and Wu Qigen, who believe that the seed structure of G. sinensis is preserved in the ginger family. Some of the more primitive features of the taxa. However, other ginger family plants such as Ginger Leaf Ginger are considered to be more evolutionary because they do not have L-collar. In addition to the differences in embryological characteristics, there is a clear difference in pollen morphology between Eucalyptus sylvestris and Gynura cinnamomea. For example, the pollen of Ginger Leaf Ginger has obvious short stabs, while the pollen of G. lucidum Ginger Ginger is smooth. Therefore, we tend to be independent of genus Ginger.
The development of anther wall in Zingiberaceae is a basic type, and the tapetum is a secretory type. Microspore mother cell meiosis is continuous, mature pollen is 2. Cells or 3. Cell pollen: inverted ovule, thick heart, double beads. The embryo sac develops into a pupa type. The results of our study showed that the ginger leaves anthers 2 rooms. The development of the drug wall is a basic type, the tapetum is a secretory type, the meiosis of the microspore mother cell is a continuous type, and the microspore tetrad is a symmetrical type. Mature pollen grains are 2-cell type: lower ovary, 3 rooms. Most ovules, inverted, with double beads, thick heart. In the axile placenta, the megaspore mother cell forms a linear or T-shaped tetramer by meiosis, and the embryo sac develops a pod-type. This is basically the same as other reported species of Gingeraceae. The developmental types are very similar, reflecting the phylogenetic consistency among all species of Gingeraceae, indicating that they share a common ancestor. This is also consistent with the embryonic characteristics of Ginger (thick pearl heart, double beaded sac, and the development of the embryo sac mainly pupa type), indicating that Ginger may be a natural taxon, originating from a common ancestor.
The current debate about the position of Loquat ginger system. The main focus is on the genus Euphorbia and Hawthorn. From the main characteristics of anthers and embryo sac. The embryological characteristics of Ginger Leaf Ginger are similar to those of Ginger Ginger (published in another article): The tapetum development is secretory and the inner wall fiber is thickened. The epidermis of the drug wall is present, and the cytoplasmic division of the microspore mother cell is continuous, the axial placenta, and the embryo sac develop into a pupa type. The embryonic characteristics of Ginger Leaf Ginger differ greatly from Hainan Sanqi (the other article is published), such as Hainan Sanqi tapetum cell 2 core, drug interior wall 2 layer, middle layer 1, and microspore tetrad shape shape Symmetrical or cross-shaped, tapetum is deformed. Eames believes that the deformed tapetum is a primitive trait. The secretory tapetum is an evolutionary feature. According to this point of view, it can be deduced that Hainan Sanqi is a more primitive group, and Zongye Jiang and Huanghua Daxie are more evolutionary groups. Although they are similar in many respects, they have some differences at the same time:
The mature pollen of G. oleifera is a 3-cell type, while the G. lucidum is a 2-cell type. 2 The cell pollen grains are a relatively primitive trait, and the 3 cell pollen is produced by the evolution of 2-cell pollen. It can be seen that G. sibiricus is a more evolved taxa than G. lucidum, but this is inconsistent with the findings of Liao Jingping and Wu Qigen, who believe that the seed structure of G. sinensis is preserved in the ginger family. Some of the more primitive features of the taxa. However, other ginger family plants such as Ginger Leaf Ginger are considered to be more evolutionary because they do not have L-collar. In addition to the differences in embryological characteristics, there is a clear difference in pollen morphology between Eucalyptus sylvestris and Gynura cinnamomea. For example, the pollen of Ginger Leaf Ginger has obvious short stabs, while the pollen of G. lucidum Ginger Ginger is smooth. Therefore, we tend to be independent of genus Ginger.
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