Genetic control of cell division patterns in developing plants

Article Abstract:

A group of stem cells called the shoot apical meristem (SAM) forms shoots and their structures such as leaves and flowers while a group of cells called the root meristem forms primary roots. Both shoot and root meristems display highly controlled yet different cell division patterns. SAMs of flowering plants do not have stereotyped cell division patterns, but several mutations cause specific disruptions in various aspects of the control of their cellular proliferation. Such disruptions show the separate modes of control of the many types of cell division patterns in shoot formation. On the other hand, root meristems have highly stereotyped lineages. Cell division patterns in roots and shoots are under genetic control and mutations can show the genetic pathways that control different cell division patterns.

Cell division, Stem cells, Meristem, Growth (Plants), Plant growth

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Plants and the logic of development

Article Abstract:

There seems to be a gradient of difference between plants and animals based on the present state of partial knowledge. It is essential to understand comprehensively the mechanisms used in genetic regulation in both kingdoms and the nature of molecules involved in cell-cell communication and environmental response. These can be achieved through continued application of developmental genetics to both plants and animals and through comparative genomics.

Plant genetics, Developmental genetics, Animal genetics

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Development of a core RFLP map in maize using an immortalized F2 population

Article Abstract:

A map drawn from restriction fragment length polymorphisms (RFLPs) in maize (Zea mays L.) was designed in an immortalized Tx303 x CO159 F2 mapping population that permitted the mapping of an unlimited number of markers and the distribution of pooled F3 seed to different laboratories.

Corn

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