同时雌雄同体裸鳃藓属植物的早熟精子交换。

IF 2.2 4区 生物学 Q2 BIOLOGY
Integrative Organismal Biology Pub Date : 2022-08-01 eCollection Date: 2022-01-01 DOI:10.1093/iob/obac034
Neville F Taraporevala, Maryna P Lesoway, Jessica A Goodheart, Deirdre C Lyons
{"title":"同时雌雄同体裸鳃藓属植物的早熟精子交换。","authors":"Neville F Taraporevala,&nbsp;Maryna P Lesoway,&nbsp;Jessica A Goodheart,&nbsp;Deirdre C Lyons","doi":"10.1093/iob/obac034","DOIUrl":null,"url":null,"abstract":"<p><p>Sexual systems vary greatly across molluscs. This diversity includes simultaneous hermaphroditism, with both sexes functional at the same time. Most nudibranch molluscs are thought to be simultaneous hermaphrodites, but detailed studies of reproductive development and timing remain rare as most species cannot be cultured in the lab. The aeolid nudibranch, <i>Berghia stephanieae</i>, is one such species that can be cultured through multiple generations on the benchtop. We studied <i>B. stephanieae</i> reproductive timing to establish when animals first exchange sperm and how long sperm can be stored. We isolated age- and size-matched individuals at sequential timepoints to learn how early individuals can exchange sperm. Individuals isolated at 10 weeks post initial feeding (wpf; ∼13 weeks postlaying [wpl]) can produce fertilized eggs. This is 6 weeks before animals first lay egg masses, indicating that sperm exchange occurs well before individuals are capable of laying eggs. Our results indicate that male gonads become functional for animals between 6 mm (∼6 wpf, ∼9 wpl) and 9 mm (∼12 wpf, ∼15 wpl) in length. That is much smaller (and sooner) than the size (and age) of individuals at first laying (12-19 mm; ∼16 wpf, ∼19 wpl), indicating that male and female functions do not develop simultaneously. We also tracked the number of fertilized eggs in each egg mass, which remained steady for the first 10-15 egg masses, followed by a decline to near-to-no fertilization. This dataset provides insights into the precise timing of the onset of functionality of the male and female reproductive systems in <i>B. stephanieae</i>. These data contribute to a broader understanding of reproductive development and the potential for understanding the evolution of diverse sexual systems in molluscs.</p>","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449679/pdf/","citationCount":"6","resultStr":"{\"title\":\"Precocious Sperm Exchange in the Simultaneously Hermaphroditic Nudibranch, <i>Berghia stephanieae</i>.\",\"authors\":\"Neville F Taraporevala,&nbsp;Maryna P Lesoway,&nbsp;Jessica A Goodheart,&nbsp;Deirdre C Lyons\",\"doi\":\"10.1093/iob/obac034\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Sexual systems vary greatly across molluscs. This diversity includes simultaneous hermaphroditism, with both sexes functional at the same time. Most nudibranch molluscs are thought to be simultaneous hermaphrodites, but detailed studies of reproductive development and timing remain rare as most species cannot be cultured in the lab. The aeolid nudibranch, <i>Berghia stephanieae</i>, is one such species that can be cultured through multiple generations on the benchtop. We studied <i>B. stephanieae</i> reproductive timing to establish when animals first exchange sperm and how long sperm can be stored. We isolated age- and size-matched individuals at sequential timepoints to learn how early individuals can exchange sperm. Individuals isolated at 10 weeks post initial feeding (wpf; ∼13 weeks postlaying [wpl]) can produce fertilized eggs. This is 6 weeks before animals first lay egg masses, indicating that sperm exchange occurs well before individuals are capable of laying eggs. Our results indicate that male gonads become functional for animals between 6 mm (∼6 wpf, ∼9 wpl) and 9 mm (∼12 wpf, ∼15 wpl) in length. That is much smaller (and sooner) than the size (and age) of individuals at first laying (12-19 mm; ∼16 wpf, ∼19 wpl), indicating that male and female functions do not develop simultaneously. We also tracked the number of fertilized eggs in each egg mass, which remained steady for the first 10-15 egg masses, followed by a decline to near-to-no fertilization. This dataset provides insights into the precise timing of the onset of functionality of the male and female reproductive systems in <i>B. stephanieae</i>. These data contribute to a broader understanding of reproductive development and the potential for understanding the evolution of diverse sexual systems in molluscs.</p>\",\"PeriodicalId\":13666,\"journal\":{\"name\":\"Integrative Organismal Biology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2022-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9449679/pdf/\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Integrative Organismal Biology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1093/iob/obac034\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Integrative Organismal Biology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/iob/obac034","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
引用次数: 6

摘要

软体动物的性系统差别很大。这种多样性包括同时雌雄同体,即两性同时发挥作用。大多数裸鳃软体动物被认为是同时雌雄同体,但由于大多数物种无法在实验室中培养,因此对生殖发育和时间的详细研究仍然很少。绿僵菌属(Berghia stephanieae)就是这样一种可以在工作台上培养多代的物种。我们研究了金鸡的生殖时间,以确定动物第一次交换精子的时间和精子可以储存多长时间。我们在连续的时间点分离出年龄和体型匹配的个体,以了解早期个体如何交换精子。初始饲喂后10周分离个体(wpf;产后~ 13周[wpl])可以产生受精卵。这是动物第一次产卵前6周,表明精子交换在个体能够产卵之前就发生了。我们的研究结果表明,雄性性腺在长度为6 mm (~ 6 wpf, ~ 9 wpl)和9 mm (~ 12 wpf, ~ 15 wpl)的动物中具有功能。这比个体第一次产卵的尺寸(和年龄)要小得多(也快得多)(12-19毫米;~ 16 wpf, ~ 19 wpl),表明男性和女性的功能不会同时发育。我们还追踪了每个卵团中受精卵的数量,在最初的10-15个卵团中,受精卵数量保持稳定,随后下降到几乎没有受精。该数据集提供了对stephanieae中雄性和雌性生殖系统功能开始的精确时间的见解。这些数据有助于更广泛地理解生殖发育,并有助于理解软体动物不同性系统的进化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Precocious Sperm Exchange in the Simultaneously Hermaphroditic Nudibranch, <i>Berghia stephanieae</i>.

Precocious Sperm Exchange in the Simultaneously Hermaphroditic Nudibranch, <i>Berghia stephanieae</i>.

Precocious Sperm Exchange in the Simultaneously Hermaphroditic Nudibranch, <i>Berghia stephanieae</i>.

Precocious Sperm Exchange in the Simultaneously Hermaphroditic Nudibranch, Berghia stephanieae.

Sexual systems vary greatly across molluscs. This diversity includes simultaneous hermaphroditism, with both sexes functional at the same time. Most nudibranch molluscs are thought to be simultaneous hermaphrodites, but detailed studies of reproductive development and timing remain rare as most species cannot be cultured in the lab. The aeolid nudibranch, Berghia stephanieae, is one such species that can be cultured through multiple generations on the benchtop. We studied B. stephanieae reproductive timing to establish when animals first exchange sperm and how long sperm can be stored. We isolated age- and size-matched individuals at sequential timepoints to learn how early individuals can exchange sperm. Individuals isolated at 10 weeks post initial feeding (wpf; ∼13 weeks postlaying [wpl]) can produce fertilized eggs. This is 6 weeks before animals first lay egg masses, indicating that sperm exchange occurs well before individuals are capable of laying eggs. Our results indicate that male gonads become functional for animals between 6 mm (∼6 wpf, ∼9 wpl) and 9 mm (∼12 wpf, ∼15 wpl) in length. That is much smaller (and sooner) than the size (and age) of individuals at first laying (12-19 mm; ∼16 wpf, ∼19 wpl), indicating that male and female functions do not develop simultaneously. We also tracked the number of fertilized eggs in each egg mass, which remained steady for the first 10-15 egg masses, followed by a decline to near-to-no fertilization. This dataset provides insights into the precise timing of the onset of functionality of the male and female reproductive systems in B. stephanieae. These data contribute to a broader understanding of reproductive development and the potential for understanding the evolution of diverse sexual systems in molluscs.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
3.70
自引率
6.70%
发文量
48
审稿时长
20 weeks
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信