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	~~'''~~Isogamy''' is a form of sexual reproduction that involves gametes of similar morphology (similar size and shape), differing in general only in allele expression in one or more mating-type regions. Because both gametes look alike, they cannot be classified as male or female. Instead, organisms undergoing isogamy are said to have different mating types, most commonly noted as "+" and "-" strains, although in some species there are more than two mating types (for example, eight in the fungus ''[[Saccharomyces cerevisiae]]'').		== Isogamy ==

	~~==Types of~~ Isogamy==		[[File:Isogamy.svg\|thumb\|right\|Diagram illustrating isogamy]]
	~~There are several types of isogamy. Both unicellular and multicellular organisms can reproduce in this manner~~. ~~The different types of~~ isogamy ~~include:~~

	* '''~~Plasmogamy~~ Isogamy'''~~: This~~ is a form of ~~isogamy~~ that involves ~~the fusion~~ of ~~cytoplasm. It is common~~ in ~~fungi and algae~~.		'''Isogamy''' is a form of sexual reproduction that involves gametes of similar morphology (similar shape and size), differing only in allele expression in one or more mating-type regions. In contrast to [[anisogamy]], where gametes of different sizes and forms are involved, isogamous species produce gametes that are morphologically indistinguishable from one another.
	* '''Karyogamy Isogamy''': This type of isogamy involves the fusion of ~~nuclei. It is also common in fungi~~ and ~~algae~~.

	==~~Isogamy in Algae~~==		== Characteristics ==
	In algae, isogamy is common. The gametes produced by algae may have flagella and are free-swimming or they may be non-motile. Algae that produce motile gametes are called [[Phaeophyceae]] and those that produce non-motile gametes are called [[Rhodophyceae]].

	~~==Isogamy in Fungi==~~		In isogamous reproduction, the gametes are typically motile and are often referred to as "+" and "-" types rather than "male" and "female". This is because they do not exhibit the size and resource investment differences seen in anisogamous species. The gametes are usually flagellated and capable of moving towards each other to facilitate fusion.
	In ~~fungi~~, ~~isogamy occurs with~~ the ~~fusion of two morphologically similar~~ gametes. This ~~can occur~~ in ~~two ways:~~

	* '''Plasmogamy''': This is the fusion of the ~~cytoplasm~~ of ~~two parent mycelia~~.		== Occurrence ==
	* '''Karyogamy''': This is the ~~fusion~~ of ~~two nuclei~~.
			Isogamy is found in a variety of [[organisms]], including some [[algae]], [[fungi]], and [[protozoa]]. It is considered to be an ancestral form of sexual reproduction, with anisogamy and oogamy evolving from it. In many isogamous species, the gametes are produced in equal numbers, and the fusion of gametes results in a [[zygote]] that develops into a new organism.

			== Evolutionary Significance ==

			The evolution of isogamy is significant in the study of the evolution of sexual reproduction. It represents a stage where the differentiation of gametes had not yet occurred, providing insights into the selective pressures that may have led to the development of anisogamy. The transition from isogamy to anisogamy is thought to be driven by the advantages of having specialized gametes, such as increased efficiency in fertilization and resource allocation.

			== Related Concepts ==

	~~==See Also==~~
	* [[Anisogamy]]		* [[Anisogamy]]
	* [[Oogamy]]		* [[Oogamy]]
			* [[Gamete]]
			* [[Zygote]]
			* [[Sexual reproduction]]

	==~~References~~==		== Related Pages ==
	~~<references />~~

	[[~~Category:Sexual reproduction~~]]		* [[Reproduction]]
	[[~~Category:Cell biology]]~~		* [[Evolution of sexual reproduction]]
	~~[[Category:Microbiology]]~~		* [[Fertilization]]
	~~[[Category:Algae~~]]
	[[~~Category:Fungi~~]]

	~~{{stub}}~~		[[Category:Reproduction]]
			[[Category:Evolutionary biology]]

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'''Isogamy''' is a form of sexual reproduction that involves gametes of similar morphology (similar size and shape), differing in general only in allele expression in one or more mating-type regions. Because both gametes look alike, they cannot be classified as male or female. Instead, organisms undergoing isogamy are said to have different mating types, most commonly noted as "+" and "-" strains, although in some species there are more than two mating types (for example, eight in the fungus ''[[Saccharomyces cerevisiae]]'').

==Types of Isogamy==
There are several types of isogamy. Both unicellular and multicellular organisms can reproduce in this manner. The different types of isogamy include:

* '''Plasmogamy Isogamy''': This is a form of isogamy that involves the fusion of cytoplasm. It is common in fungi and algae.
* '''Karyogamy Isogamy''': This type of isogamy involves the fusion of nuclei. It is also common in fungi and algae.

==Isogamy in Algae==
In algae, isogamy is common. The gametes produced by algae may have flagella and are free-swimming or they may be non-motile. Algae that produce motile gametes are called [[Phaeophyceae]] and those that produce non-motile gametes are called [[Rhodophyceae]].

==Isogamy in Fungi==
In fungi, isogamy occurs with the fusion of two morphologically similar gametes. This can occur in two ways:

* '''Plasmogamy''': This is the fusion of the cytoplasm of two parent mycelia.
* '''Karyogamy''': This is the fusion of two nuclei.

==See Also==
* [[Anisogamy]]
* [[Oogamy]]

==References==
<references />

[[Category:Sexual reproduction]]
[[Category:Cell biology]]
[[Category:Microbiology]]
[[Category:Algae]]
[[Category:Fungi]]

{{stub}}

Isogamy - Revision history

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