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See all on WikipediaHeterospory - Wikipedia
Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. The smaller of these, the microspore, is male and the larger megaspore is female. Heterospory evolved during the Devonian period from isospory independently in several plant groups: the clubmosses, … See more
Wikipedia text under CC-BY-SA license Why did heterospory evolve? - Wiley Online Library
WEBOct 11, 2019 · The evolution of bimodal size distributions with small male spores and large female spores, known as heterospory, was an innovation that occurred repeatedly in the …
- Author: Kurt B. Petersen, Martin Burd
- Publish Year: 2017
Endospory in plants - Wikipedia
There is debate as to whether endospory or heterospory evolved first. Some debate centers upon the requirement of endospory to develop before heterospory. Endospory is assumed to follow heterospory but it has been suggested that without endospory, early plant species dependency on water fertilization and environmental impacts on gametophytic gene expression would have reduced the chances of heterospory in the Late Devonian. Heterospory and endospory are ofte…
Wikipedia · Text under CC-BY-SA licenseHeterospory | botany | Britannica
WEBIt is characterized by morphologically dissimilar spores produced from two types of sporangia: microspores, or male spores, and megaspores (macrospores), or female …
Heterospory: History, Origin and Advantages - Biology Discussion
WEBIn this article we will discuss about:- 1. History of Heterospory 2. Incipience of Heterospory 3. Origin 4. Evidences 5. Advantages. History of Heterospory: Pteridophytes are the first …
Why did heterospory evolve? - PubMed
WEBThe evolution of bimodal size distributions with small male spores and large female spores, known as heterospory, was an innovation that occurred repeatedly in the history of land …
The adaptive value of heterospory: Evidence from Selaginella
WEBMay 1, 2018 · We used the geographic distributions of 114 species of the heterosporous lycophyte Selaginella to explore the functional ecology of microspore and megaspore …
WEBHeterospory involves endospory and unisexuality of gametophytes, elements unique to the role of spores in the land plant life cycle, but the common element of size …
Understanding the appearance of heterospory and derived plant ...
WEBThe evolution of different spore size classes, or heterospory, is a fundamental reproductive innovation in land plants. The appearance of heterospory is particularly notable during …
Why Do Heterosporous Plants Have So Few Chromosomes? - PMC
WEBFeb 16, 2022 · In this review, we examined the multiple origins of heterospory in plants and considered which traits might be affecting their chromosome numbers, genome size, and …
Heterospory - an overview | ScienceDirect Topics
WEBHeterospory is the production of spores of generally two sizes (microspores and megaspores), each developing into a particular type of gametophyte—either a …
Heterospory Definition & Meaning - Merriam-Webster
WEBThe meaning of HETEROSPORY is the production of microspores and megaspores (as in seed plants).
HETEROSPORY: THE MOST ITERATIVE KEY INNOVATION IN …
WEBHeterospory reflects the convergent attainment of similar modes of reproduction in phylogenetically disparate lineages. Nature repeated this experiment many times, …
Why did heterospory evolve? - Abstract - Europe PMC
WEBOct 11, 2016 · The evolution of bimodal size distributions with small male spores and large female spores, known as heterospory, was an innovation that occurred repeatedly in the …
What is the Difference Between Homospory and Heterospory
WEBDec 6, 2018 · The main difference between homospory and heterospory is that the homospory is the production of a single type of spores with the same size whereas the …
heterospory | Encyclopedia.com
WEBheterospory The production of spores of 2 different types on the same plant. Microspores are small and numerous; from these the male gametophytes develop. Megaspores, …
Sporophyte - Wikipedia
WEBA sporophyte ( / ˈspɔːr.əˌfaɪt /) is the diploid multicellular stage in the life cycle of a plant or alga which produces asexual spores. This stage alternates with a multicellular haploid …
HETEROSPORY Definition & Meaning | Dictionary.com
WEBHeterospory definition: the production of both microspores and megaspores.. See examples of HETEROSPORY used in a sentence.
heterospory - Wiktionary, the free dictionary
WEBEnglish Wikipedia has an article on: heterospory. ( botany) The production of spores of two different sizes and sexes by the sporophytes of land plants. isospory. Categories: …
Pteris platyzomopsis - Wikipedia
WEBPteris platyzomopsis, synonym Platyzoma microphyllum, is a species of fern in the family Pteridaceae. When placed in the genus Platyzoma, it was the only species; the genus …
What is heterospory? - Answers
WEBDec 11, 2023 · Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants.
Heterosporium - Wikipedia
WEBHeterosporium is a genus of fungi belonging to the family Cladosporiaceae. [1] The genus has almost cosmopolitan distribution. [1]
Heterospòria - Viquipèdia, l'enciclopèdia lliure
WEBL' Heterosporia és la producció d' espores de dues mides i sexes diferents per part dels esporòfits de les plantes terrestres. La més petita d'aquestes, la micròspora, és …
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