Results 31 to 40 of about 27,145 (255)

A Study of Hybridization Between Marmota baibacina and M. sibirica in Their Secondary Contact Zone in Mongolian Altai

Frontiers in Ecology and Evolution, 2021
The role of hybridization as one of the factors of speciation in mammals has been underestimated for a long time, but now there is a lot of data on its impact in mammalian evolution. Hybridization of species often occurs in their secondary contact zones,
Oleg V. Brandler, Svetlana Yu. Kapustina, Alexander A. Nikol’skii, Viacheslav V. Kolesnikov, Bair B. Badmaev, Yansanjav Adiya   +5 more
doaj   +1 more source

Divergent selection on opsins drives incipient speciation in Lake Victoria cichlids. [PDF]

PLoS Biology, 2006
Divergent natural selection acting on ecological traits, which also affect mate choice, is a key element of ecological speciation theory, but has not previously been demonstrated at the molecular gene level to our knowledge.
Yohey Terai, Ole Seehausen, Takeshi Sasaki, Kazuhiko Takahashi, Shinji Mizoiri, Tohru Sugawara, Tetsu Sato, Masakatsu Watanabe, Nellie Konijnendijk, Hillary D J Mrosso, Hidenori Tachida, Hiroo Imai, Yoshinori Shichida, Norihiro Okada   +13 more
doaj   +1 more source

Reinforcement during ecological speciation [PDF]

Proceedings of the Royal Society of London. Series B: Biological Sciences, 2001
Reinforcement of pre-zygotic isolation can result when any of several kinds of selection act against hybrids. This paper investigates the situation where hybrids are selected against for ecological reasons, for example when there is no niche for individuals that are phenotypically intermediate between the parental species.
openaire   +2 more sources

How common is ecological speciation in plant-feeding insects? A 'Higher' Nematinae perspective

BMC Evolutionary Biology, 2010
Background Ecological speciation is a process in which a transiently resource-polymorphic species divides into two specialized sister lineages as a result of divergent selection pressures caused by the use of multiple niches or environments.
Nyman Tommi, Vikberg Veli, Smith David R, Boevé Jean-Luc   +3 more
doaj   +1 more source

Does speciation between Arabidopsis halleri and Arabidopsis lyrata coincide with major changes in a molecular target of adaptation? [PDF]

PLoS ONE, 2011
Ever since Darwin proposed natural selection as the driving force for the origin of species, the role of adaptive processes in speciation has remained controversial.
Camille Roux, Vincent Castric, Maxime Pauwels, Stephen I Wright, Pierre Saumitou-Laprade, Xavier Vekemans   +5 more
doaj   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

Advanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou, Huawei Mu, Xueying Nie, Yue Gao, Hui Wang, Ling Fang, Tiangang Luan, Monthon Ganmanee, Jian‐Wen Qiu, Jin Sun, Jack Chi‐Ho Ip   +10 more
wiley   +1 more source

Microevolutionary processes impact macroevolutionary patterns

BMC Evolutionary Biology, 2018
Background Macroevolutionary modeling of species diversification plays important roles in inferring large-scale biodiversity patterns. It allows estimation of speciation and extinction rates and statistically testing their relationships with different ...
Jingchun Li, Jen-Pen Huang, Jeet Sukumaran, L. Lacey Knowles   +3 more
doaj   +1 more source

Visual adaptation and microhabitat choice in Lake Victoria cichlid fish [PDF]

Royal Society Open Science, 2019
When different genotypes choose different habitats to better match their phenotypes, genetic differentiation within a population may be promoted. Mating within those habitats may subsequently contribute to reproductive isolation.
Daniel Mameri, Corina van Kammen, Ton G. G. Groothuis, Ole Seehausen, Martine E. Maan   +4 more
doaj   +1 more source

T2T Genome Assembly and Multi‐Omics Data Reveal Terrestrial Adaptation and Mucus Biosynthesis in Tropical Leatherleaf Slug (Laevicaulis alte)

Advanced Science, EarlyView.
A gap‐free genome assembly and multi‐omics comparison of the terrestrial slug Laevichaulis alte with an aquatic relative reveal that expansion of the VEGF family orchestrates mucus production, lipid metabolism, and immune defense—highlighting key molecular innovations for conquering life on land.
Gang Wang, Shaofang He, Zhongkai Wang, Aobo Pang, Xiaoli Sun, Rongchen Liu, Fang Wang, Sisi Chen, Zhijuan Bian, Dongcheng Wei, Liuhan Wu, Siyao Zhao, Qiuting Ji, Yiqi Sun, Niying Sun, Yushinta Fujaya, Boping Tang, Kianann Tan, Daizhen Zhang, Lianfu Chen   +19 more
wiley   +1 more source