Talk:Gynodioecy

Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Mattakbar. Peer reviewers: Dpr78, Bf255, Chris6734, WenCOB.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 22:54, 16 January 2022 (UTC)

stub

Hello everyone, this is actually a stub and it will be nice to have people add more reliable content to it.Please do not hesitate to contribute thank you.Ochawhite (talk) 12:04, 4 February 2009 (UTC)

Gynodioecious Species

Hello.

The link for the one citation on this article does not bring you directly to the article "Journal of the Torrey Botanical Society: Gynodioecy in Lobelia siphilitica and L. spicata (Lobeliaceae) from western Massachusetts". Rather, it directs you to a search engine for FindArticles.com.

In addition, the first sentence could use some further clarification. Instead of saying "male-sterile individuals (i.e. females) coexist with hermaphroditic individuals in populations", it would be much more concise and clear to say "females coexist with hermaphroditic individuals in populations".

Mattakbar (talk) 17:21, 20 September 2016 (UTC)

New References

References:

Advances in Botanical Research, Vol. 63, Chapter 4: Mitochondrial Genome Evolution and Advances in Gynodioecy [1]

The first chapter, 1.1 provides great insight into what gynodioecy actually is. A clear cut definition is given and the way it works is described in simple and easy to follow terms. In particular, the fact that it is seen as a transition state into dioecy, or the characteristic of having two distinct species, male and female. In addition, the descriptions of how female advantage and how that affects gynodioecy. I was unaware that gynodioecy occurs in beets. Also, the genus Silene is used as an example and a point of comparison, since it can mate in hermaphroditic, gynodioecious, or dioecious systems.

Why is gynodioecy a rare but widely distributed sexual system? Lessons from the Lamiaceae[2]

Illustrates how rare gynodioecy is, <1% of angiosperm families. Provides a clearly stated reason as to why gynodioecy is so rare. Also shows that gynodioecy is present in other species, unlike the Wikipedia page that only discusses it in Lobelia siphilitica.

Journal of Theoretical Biology, The joint evolution and maintenance of self-incompatibility with gynodioecy or androdioecy[3]

This experiment compares the differences between gynodioecious species, populations of female coexisting with hermaphrodites, and androdioecy, populations of males with hermaphrodites. One point that is made is that it is possible for gynodioecy and androdioecy to evolve from hermaphroditism, under the right conditions, which are if enough resources are allocated to the females/males and if there is a high rate of inbreeding depression. Self-Incompatibility helps to maintain androdioecy, but favors the loss of gynodioecy. Androdioecy maintains of Self-incompatibility, whereas gynodioecy has no net affect on it. Androdioecy prevents the increase of the number of Self-incompatible groups, but gynodioecy allows it.

Merging theory and mechanism in studies of gynodioecy[4]

Talks about gynodioecy being a type of polymoprhism. It describes how the individulas in the population become females or hermaphrodites. The cytoplasmic male sterility gene causes male sterility and turns the males into females in the population by preventing them from producing pollen. The other gene in the nucleus turns plants into hermaphrodites. The evolution of gynodioecy on a lattice[5]

In this experiment, it is shown that in a gynodioecious population, the females actually have the reproductive advantage over the hermaphrodites. It takes into account how space affects gynodioecious species. Gynodioecy is less likely to evolve in plants that have more localized pollination. In addition, it is stated that a lower frequency of females should be expected in gynodioecious populations where interactions are local.

Male-biased hermaphrodites in a gynodioecious shrub, Daphne jezoensis[6]

It states that gynodioecy is the intermediate stage between hermaphroditism to dioecy. This experiment takes into account sex ratios, something that we discussed in class. It mentions that gynodioecy is determined by either a nuclear inheritance system or nuclear-cytoplasmic inheritance system for male sterility. Under results, it is stated that generally, females are the ones that invest more reproductive resources than hermaphrodites in gynodioecious species. However, the results of the experiment proved different.

Jump up ^ Touzet, Pascal (2012). Advances in Botanical Research, Vol. 63. Laurence Maréchal-Drouard. pp. 71–98. ISBN 9780123944429. Jump up ^ Rivkin, L. Ruth; Case, Andrea L.; Caruso, Christina M. "Why is gynodioecy a rare but widely distributed sexual system? Lessons from the Lamiaceae". New Phytologist. Jump up ^ Van de Paer, Celine; Saumitou-Laprade, Pierre; Vernet, Phillippe; Billiard, Sylvian. "The Joint Evolution and Maintenance of Self-Incompatibility with Gynodioecy or Androdioecy". Journal of Theoretical Biology. Jump up ^ Delph, Lynda F.; Touzet, Pascal; Bailey, Maia F. "Merging theory and mechanism in studies of gynodioecy". Trends in Ecology and Evolution. 22. Jump up ^ Preece, T.; Mao, Y. "The evolution of gynodioecy on a lattice". Journal of Theoretical Biology. 266. Jump up ^ Sinclair, J.P.; Kameyama, Y.; Shibata, A.; Kudo, G. "Male-biased hermaphrodites in a gynodioecious shrub, Daphne jezoensis". Plant Biology. — Preceding unsigned comment added by Mattakbar (talk • contribs) 00:36, 11 October 2016 (UTC)

Review

The page has good sources and information, but I think your formatting is off. I would start with general aspects of gynodiocey before moving into specific examples. Also, the manner in which you are citing is not how citations work on wikipedia, you don't need the in-text format like an APA paper, just use the citation tool. Finally, your opening sentence is a little obfuscating, is the phrase " male-sterile individuals" necessary wording? WenCOB (talk) 17:15, 22 October 2016 (UTC)

Response to Peer Review:

Thank you for the peer review. I think you may have read the incorrect article. The article with the phrase "male-sterile individuals" is the work of the original wikipedia page that was available on gynodioecy before we began class. My version and edit are posted in my sandbox. I agree that the formatting and language used in the original article is off, I tried to improve it in my draft. Thanks. -Matt Akbar

Exclusive to plants

I have seen sources mention that this also occurs in animals like [this.]CycoMa (talk) 16:59, 7 July 2021 (UTC)

Papaya

Papayas appear to have females, males, and male dominant hermaphrodites in which, on typical male growth, a small number of self fertilised fruit develop. 90.242.186.141 (talk) 08:24, 23 February 2024 (UTC)