Question

Define the process of asexual process in Bryophytes?

Answer 1

Bryophytes may reproduce both sexually and vegetatively. Sexual reproduction involves the mixing of the genes of two parents, with the potential to produce new plants that differ, genetically, from each parent. In vegetative reproduction, there is no such mixing and each new plant is derived from just one parent plant.

Bryophytes can reproduce vegetatively in a variety of ways. The simplest is fragmentation. A piece that breaks off a gametophyte and then lands in a suitable habitat will grow into a new gametophyte. The breakage may be accidental, such as animal trampling or erosion leading to fragmentation of an existing bryophyte colony. However, many bryophytes have zones of weakness which promote the breakage of parts of the gametophyte, such as whole branches or perhaps just branch tips or even just parts of leaves. Such fragmentation is much more common in the leafy bryophytes than in the thallose ones.

Answer 2

Answer:

Thalloid liverworts

Marchantia can reproduce asexually and sexually. Asexual reproduction is accomplished through gemmae, which are tiny lens-shaped pieces of tissue that detach from the thallus. Gemmae cups are produced along the upper surface of the gametophyte.

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