Current Biology最新文献_第3页

Co-option of the trichome-forming network initiated the evolution of a morphological novelty in Drosophila eugracilis. 毛状体形成网络的共同选择引发了八哥果蝇形态新颖性的进化。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-25 DOI: 10.1016/j.cub.2024.09.073

Gavin Rice, Tatiana Gaitán-Escudero, Kenechukwu Charles-Obi, Julia Zeitlinger, Mark Rebeiz

{"title":"Co-option of the trichome-forming network initiated the evolution of a morphological novelty in Drosophila eugracilis.","authors":"Gavin Rice, Tatiana Gaitán-Escudero, Kenechukwu Charles-Obi, Julia Zeitlinger, Mark Rebeiz","doi":"10.1016/j.cub.2024.09.073","DOIUrl":"10.1016/j.cub.2024.09.073","url":null,"abstract":"Identifying the molecular origins by which new morphological structures evolve is one of the long-standing problems in evolutionary biology. To date, vanishingly few examples provide a compelling account of how new morphologies were initially formed, thereby limiting our understanding of how diverse forms of life derived their complex features. Here, we provide evidence that the large projections on the Drosophila eugracilis phallus that are implicated in sexual conflict have evolved through the partial co-option of the trichome genetic network. These unicellular apical projections on the phallus postgonal sheath are reminiscent of trichomes that cover the Drosophila body but are up to 20-fold larger in size. During their development, they express the transcription factor Shavenbaby, the master regulator of the trichome network. Consistent with the co-option of the Shavenbaby network during the evolution of the D. eugracilis projections, somatic mosaic CRISPR-Cas9 mutagenesis shows that shavenbaby is necessary for their proper length. Moreover, misexpression of Shavenbaby in the sheath of D. melanogaster, a naive species that lacks these projections, is sufficient to induce small trichomes. These induced projections rely on a genetic network that is shared to a large extent with the D. eugracilis projections, indicating its partial co-option but also some genetic rewiring. Thus, by leveraging a genetically tractable evolutionary novelty, our work shows that the trichome-forming network is flexible enough that it can be partially co-opted in a new context and subsequently refined to produce unique apical projections that are barely recognizable compared with their simpler ancestral beginnings.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5284-5294.e3"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142497031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Historical invasion rates vary among insect trophic groups. 不同昆虫营养群的历史入侵率各不相同。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-22 DOI: 10.1016/j.cub.2024.09.068

Richard Mally, Rebecca M Turner, Helen F Nahrung, Takehiko Yamanaka, Gyda Fenn-Moltu, Cleo Bertelsmeier, Andrew M Liebhold

{"title":"Historical invasion rates vary among insect trophic groups.","authors":"Richard Mally, Rebecca M Turner, Helen F Nahrung, Takehiko Yamanaka, Gyda Fenn-Moltu, Cleo Bertelsmeier, Andrew M Liebhold","doi":"10.1016/j.cub.2024.09.068","DOIUrl":"10.1016/j.cub.2024.09.068","url":null,"abstract":"Globalization has spread thousands of invasive insect species into new world regions,1,2,3 causing severe losses in ecosystem services. Previous work proposed that plant invasions facilitate insect invasions through the creation of niches for non-native herbivores.3,4,5,6 Despite the impact of insect invasions, a comprehensive understanding is lacking on how invasion success varies among insect feeding groups. We therefore compiled the predominant larval trophic groups (herbivores, predators, parasites, detritivores, and brood-carers) for 5,839 non-native insect species in nine world regions to compare (1) proportions of species in each group between non-native species and the world's fauna, (2) how invasion success for each trophic group has changed over the last three centuries, and (3) how historical herbivore invasions are related to plant invasions over time and parasite invasions are related to herbivores. We find that herbivores represent a significantly larger proportion (52.4%) among non-native insects compared with the world fauna (38.4%), whereas proportions of non-native detritivores (including fungivores), predators, and brood-carers are significantly lower; parasite proportions do not significantly differ. Predators and detritivores dominated among invasions in the 18th century but subsequently diminished, likely due to changing invasion pathways, whereas proportions of herbivores, parasites, and brood-carers increased over time. We found herbivore invasions to lag 80 years behind plant invasions, whereas parasitoids appear to co-invade with their herbivore hosts. The dominance of herbivores among non-native insects and their strong cross-correlation with plant invasions further strengthens the hypothesis that plant invasions drive the global rise in numbers of non-native insects.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5374-5381.e3"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142497035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The CEP peptide-CRA2 receptor module promotes arbuscular mycorrhizal symbiosis. CEP肽-CRA2受体模块促进丛枝菌根共生。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-21 DOI: 10.1016/j.cub.2024.09.058

Léa Pedinotti, Juliette Teyssendier de la Serve, Thibault Roudaire, Hélène San Clemente, Marielle Aguilar, Wouter Kohlen, Florian Frugier, Nicolas Frei Dit Frey

{"title":"The CEP peptide-CRA2 receptor module promotes arbuscular mycorrhizal symbiosis.","authors":"Léa Pedinotti, Juliette Teyssendier de la Serve, Thibault Roudaire, Hélène San Clemente, Marielle Aguilar, Wouter Kohlen, Florian Frugier, Nicolas Frei Dit Frey","doi":"10.1016/j.cub.2024.09.058","DOIUrl":"10.1016/j.cub.2024.09.058","url":null,"abstract":"C-terminally encoded peptides (CEPs) are small secreted signaling peptides that promote nitrogen-fixing root nodulation symbiosis in legumes, depending on soil mineral nitrogen availability.1 In Medicago truncatula, their action is mediated by the leucine-rich repeat receptor-like protein kinase COMPACT ROOT ARCHITECTURE 2 (CRA2).2,3,4 Like most land plants, under inorganic phosphate limitation, M. truncatula establishes another root endosymbiotic interaction with arbuscular fungi, the arbuscular mycorrhizal symbiosis (AMS). Because this interaction is beneficial for the plant but has a high energetic cost, it is tightly controlled by host plants to limit fungal infections mainly depending on phosphate availability.5 We show in this study that the expression of a subset of CEP-encoding genes is enhanced in the low-phosphate conditions and that overexpression of the low-phosphate-induced MtCEP1 gene, previously shown to promote the nitrogen-fixing root nodulation symbiosis, enhances AMS from the initial entry point of the fungi. Conversely, a loss-of-function mutation of the CRA2 receptor required for mediating CEP peptide action2 decreases the endomycorrhizal interaction from the same initial fungal entry stage. Transcriptomic analyses revealed that the cra2 mutant is negatively affected in the regulation of key phosphate transport and response genes as well as in the biosynthesis of strigolactone hormones that are required for establishing AMS. Accordingly, strigolactone contents were drastically decreased in cra2 mutant roots. Overall, we showed that the CEP/CRA2 pathway promotes both root nodulation and AMS in legume plants, depending on soil mineral nutrient availability.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5366-5373.e4"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142497040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hurricanes threaten species and alter evolutionary trajectories on tropical islands. 飓风威胁物种，改变热带岛屿的进化轨迹。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 DOI: 10.1016/j.cub.2024.10.011

Bo Dalsgaard, Ethan J Temeles

{"title":"Hurricanes threaten species and alter evolutionary trajectories on tropical islands.","authors":"Bo Dalsgaard, Ethan J Temeles","doi":"10.1016/j.cub.2024.10.011","DOIUrl":"https://doi.org/10.1016/j.cub.2024.10.011","url":null,"abstract":"Hurricanes are natural phenomena, but anthropogenic climate change will cause hurricanes to be stronger and more frequent in the future. It has long been known that hurricanes impact plants and animals, but only recently has the impact on biodiversity been mapped globally, showing that species at risk of extinction due to hurricanes are largely restricted to tropical islands. Tropical islands harbor many plants and animals found nowhere else, many of which are currently threatened, and tropical islands have already suffered a disproportionate number of species extinctions due to human activity and introductions of non-native species. The big question is whether species on tropical islands are adapted to hurricane disturbance and will be able to cope with stronger and more frequent storms, or whether tropical islands will see a wave of hurricane-induced extinctions in the future. Here, we discuss this question and how hurricanes will reshuffle interactions between species - such as those between nectarivorous birds and their flowers - and will alter evolutionary trajectories for coadapted species. Moreover, we discuss the role of life history and other taxa-specific traits, such as diet preferences and dispersal ability, both to survive the direct and indirect impact of hurricanes and to recolonize islands when local populations have been eliminated. We also highlight how topographic complexity and island area may buffer against hurricanes; thus, biodiversity on small and low-lying islands should be more impacted than biodiversity on large and mountainous islands. We end by discussing conservation efforts to diminish the detrimental ecological and evolutionary effects of stronger and more frequent hurricanes on tropical islands.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":"34 22","pages":"R1115-R1120"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laila P. Partida-Martínez. 莱拉-P-帕尔蒂达-马丁内斯

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 DOI: 10.1016/j.cub.2024.09.085

Laila P Partida-Martínez

引用次数: 0

Regulation loopholes in China aggravate depletion of wildlife. 中国的监管漏洞加剧了野生动物的枯竭。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 DOI: 10.1016/j.cub.2024.09.080

Yik-Hei Sung, Shijia Hu, Michael Wai-Neng Lau, Douglas Hendrie, Jonathan J Fong, Hai-Tao Shi

{"title":"Regulation loopholes in China aggravate depletion of wildlife.","authors":"Yik-Hei Sung, Shijia Hu, Michael Wai-Neng Lau, Douglas Hendrie, Jonathan J Fong, Hai-Tao Shi","doi":"10.1016/j.cub.2024.09.080","DOIUrl":"https://doi.org/10.1016/j.cub.2024.09.080","url":null,"abstract":"China has committed to develop an ecological civilization and recently taken significant steps to enhance conservation measures including updating the List of National Key Protected Wild Animals and revising the Wildlife Protection Law in 20211. Conservation has improved by increasing the number of protected species. However, a notable shortcoming undermines the effectiveness of protection for as many as 87 species, as the regulation applies only to wild and not to captive individuals (Figure 1 and Table S1). Additionally, the Ministry of Agriculture and Rural Affairs similarly regulates 230 CITES-listed aquatic species, most of which are non-native species to China (Notice No. 491). Given the challenges differentiating wild and captive individuals, these regulation changes allow and incentivize the laundering of wild-caught animals as captive-bred in trade. The impacts of these regulation amendments on conservation are substantial for two reasons. First, China has one of the world's largest wildlife trades, with a high volume of native and non-native animals traded and farmed2,3. Second, many of the species affected are globally threatened, including 51% of native and 63% of CITES-listed aquatic species (Figure 1). Ultimately, the regulation changes exacerbate population declines of many threatened species.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":"34 22","pages":"R1135-R1136"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Root development: A new player integrates two old friends. 扎根发展：一个新玩家整合了两个老朋友。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 DOI: 10.1016/j.cub.2024.09.057

Jiajia Liu, Zipeng Yu, Zhaojun Ding

引用次数: 0

Shear stress sensing in C. elegans. 秀丽隐杆线虫的剪切应力感应

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-28 DOI: 10.1016/j.cub.2024.09.075

Zhiyong Zhang, Xia Li, Can Wang, Fengfan Zhang, Jianfeng Liu, X Z Shawn Xu

{"title":"Shear stress sensing in C. elegans.","authors":"Zhiyong Zhang, Xia Li, Can Wang, Fengfan Zhang, Jianfeng Liu, X Z Shawn Xu","doi":"10.1016/j.cub.2024.09.075","DOIUrl":"10.1016/j.cub.2024.09.075","url":null,"abstract":"Shear stress sensing represents a vital mode of mechanosensation.1 Previous efforts have mainly focused on characterizing how various cell types-for example, vascular endothelial cells-sense shear stress arising from fluid flow within the animal body.1,2 How animals sense shear stress derived from their external environment, however, is not well understood. Here, using C. elegans as a model, we show that external fluid flow triggers behavioral responses in C. elegans, facilitating their navigation of the environment during swimming. Such behavioral responses primarily result from shear stress generated by fluid flow. The sensory neurons AWC, ASH, and ASER are the major shear stress-sensitive neurons, among which AWC shows the most robust response to shear stress and is required for shear stress-induced behavior. Mechanistically, shear stress signals are transduced by G protein signaling in AWC, with cGMP as the second messenger, culminating in the opening of cGMP-sensitive cyclic nucleotide-gated (CNG) channels and neuronal excitation. These studies demonstrate that C. elegans senses and responds to shear stress and characterize the underlying neural and molecular mechanisms. Our work helps establish C. elegans as a genetic model for studying shear stress sensing.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5382-5391.e3"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11576262/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Australia's recently established predators restore complexity to food webs simplified by extinction. 澳大利亚新近出现的食肉动物让因物种灭绝而变得复杂的食物网恢复了生机。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-09 DOI: 10.1016/j.cub.2024.09.049

Eamonn I F Wooster, Owen S Middleton, Arian D Wallach, Daniel Ramp, Oscar Sanisidro, Valerie K Harris, John Rowan, Simon D Schowanek, Chris E Gordon, Jens-Christian Svenning, Matt Davis, Jörn P W Scharlemann, Dale G Nimmo, Erick J Lundgren, Christopher J Sandom

{"title":"Australia's recently established predators restore complexity to food webs simplified by extinction.","authors":"Eamonn I F Wooster, Owen S Middleton, Arian D Wallach, Daniel Ramp, Oscar Sanisidro, Valerie K Harris, John Rowan, Simon D Schowanek, Chris E Gordon, Jens-Christian Svenning, Matt Davis, Jörn P W Scharlemann, Dale G Nimmo, Erick J Lundgren, Christopher J Sandom","doi":"10.1016/j.cub.2024.09.049","DOIUrl":"10.1016/j.cub.2024.09.049","url":null,"abstract":"Since prehistory, humans have altered the composition of ecosystems by causing extinctions and introducing species. However, our understanding of how waves of species extinctions and introductions influence the structure and function of ecological networks through time remains piecemeal. Here, focusing on Australia, which has experienced many extinctions and introductions since the Late Pleistocene, we compared the functional trait composition of Late Pleistocene (130,00-115,000 years before present [ybp]), Holocene (11,700-3,000 ybp), and current Australian mammalian predator assemblages (≥70% vertebrate meat consumption; ≥1 kg adult body mass). We then constructed food webs for each period based on estimated prey body mass preferences. We found that introduced predators are functionally distinct from extinct Australian predators, but they rewire food webs toward a state that closely resembles the Late Pleistocene, prior to the megafauna extinctions. Both Late Pleistocene and current-day food webs consist of an apex predator and three smaller predators. This leads to food web networks with a similar total number of links, link densities, and compartmentalizations. However, this similarity depends on the presence of dingoes: in their absence, food webs become simplified and reminiscent of those following the Late Pleistocene extinctions. Our results suggest that recently established predators, even those implicated in species extinctions and declines, can restore complexity to food webs simplified by extinction.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5164-5172.e2"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142399717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep-time origin of tympanic hearing in crown reptiles. 冠爬行动物鼓膜听觉的深时起源。

IF 8.1 1区生物学

Current Biology Pub Date : 2024-11-18 Epub Date: 2024-10-10 DOI: 10.1016/j.cub.2024.09.041

Mario Bronzati, Felipe M Vieceli, Vitoria S Botezelli, Pedro L Godoy, Felipe C Montefeltro, Jann P M Nassif, Juliana Luzete, Douglas Ribeiro, C Y Irene Yan, Ingmar Werneburg, Tiana Kohlsdorf

{"title":"Deep-time origin of tympanic hearing in crown reptiles.","authors":"Mario Bronzati, Felipe M Vieceli, Vitoria S Botezelli, Pedro L Godoy, Felipe C Montefeltro, Jann P M Nassif, Juliana Luzete, Douglas Ribeiro, C Y Irene Yan, Ingmar Werneburg, Tiana Kohlsdorf","doi":"10.1016/j.cub.2024.09.041","DOIUrl":"10.1016/j.cub.2024.09.041","url":null,"abstract":"The invasion of terrestrial ecosystems by tetrapods (c. 375 million years [Ma]) represents one of the major evolutionary transitions in the history of life on Earth. The success of tetrapods on land is linked to evolutionary novelties. Among these, the evolution of a tympanic ear contributed to mitigating the problem of an impedance mismatch between the air and the fluid embedding sound-detecting hair cells in the inner ear.1,2,3 Pioneering studies advocated that similarities in the tympanic ear of tetrapods could only result from a single origin of this structure in the group,4,5 an idea later challenged by paleontological and developmental data.4,6,7,8 Current evidence suggests that this sensory structure evolved independently in amphibians, mammals, and reptiles,1,6 but it remains uncertain how many times tympanic hearing originated in crown reptiles.9,10 We combine developmental information with paleontological data to evaluate the evolution of the tympanic ear in reptiles from two complementary perspectives. Phylogenetically informed ancestral reconstruction analyses of a taxonomically broad sample of early reptiles point to the presence of a tympanic membrane as the ancestral condition of the crown group. Consistently, comparative analyses using embryos of lizards and crocodylians reveal similarities, including the formation of the tympanic membrane within the second pharyngeal arch, which has been previously reported for birds. Therefore, both our developmental and paleontological data suggest a single origin for the tympanic middle ear in the group, challenging the current paradigm of multiple acquisitions of tympanic hearing in living reptiles.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5334-5340.e5"},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0