Results 61 to 70 of about 5,209 (201)

Xenosaurus [PDF]

, 2000
Number of Pages: 3Integrative BiologyGeological ...
Ballinger, Royce E., Lemos-Espinal, Julio A., Smith, Geoffrey R.   +2 more
core   +1 more source

Developmental expression of Ap‐Vas proteins in aphids and flies reveals their evolutionary roles in insects

Insect Molecular Biology, EarlyView.
Duplication of vas genes is universally observed in aphids, and phylogenetic analysis indicates that this event predates the divergence of Aphididae and Phylloxeridae. Ap‐vas1 is germline‐specific, whereas Ap‐vas2–4 exhibit somatic expression, indicating functional divergence during aphid embryogenesis.
Gee‐Way Lin, Szu‐Chieh Wang, Charles E. Cook, Ming‐Der Lin, Chun‐che Chang   +4 more
wiley   +1 more source

Morphogenesis of propagules in viviparous species Bryophyllum daigremontianum and B. calycinum

Acta Societatis Botanicorum Poloniae, 2014
The propagule development in two viviparous Bryophyllum species: B. daigremontianum and B. calycinum (Crassulaceae) has been found to proceed via embryoidogenesis (somatic embryo).
T. B. Batygina, E. A. Bragina, G. E. Titova   +2 more
doaj   +1 more source

Asymmetric paternal effect on offspring size linked to parent-of-origin expression of an insulin-like growth factor [PDF]

, 2017
Research was supported by PAPIIT grant IN216111 (CMG), CONACyT PhD scholarship 351769 (YSL), and the Howard Hughes International Research Program (JPVC).Sexual reproduction brings together reproductive partners whose long-term interests often differ ...
Abrahamson, Alleman, Arnqvist, Barlow, Blackburn, Brandvain, Burley, Burley, Chapman, Cohick, Constância, Crespi, De Gasperin, DeChiara, DeChiara, Gesundheit, Gil, González Zuarth, González-Forero, Griggio, Haldane, Hendrich, Hollenberg, Juhua, Keller, Killian, Killian, Kornfeld, Lau, Lawton, Lawton, Lim, Lombardi, Lombardi, Macías Garcia, Macías Garcia, Macías-Garcia, Moore, Murrell, Méndez, Nolan, O'Neill, O'Neill, Oldroyd, Ortíz-Barrientos, Parker, Parker, Reik, Reznick, Rice, Ritchie, Rogers, Rowe, Sambrook, Schindler, Schrader, Schrader, Schrader, Schrader, Shikano, Shull, Stearns, Templeton, Trexler, Trivers, Trivers, Webb, Wilkins, Wolf, Wolf, Wolf, Wourms, Xie, Yuan   +73 more
core   +1 more source

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source

Elgaria panamintina [PDF]

, 1996
Number of Pages: 4Integrative BiologyGeological ...
Banta, Benjamin H., Beaman, Kent R., Mahrdt, Clark R.   +2 more
core   +1 more source

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

Journal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro, Raquel Lopes Queiroz, Cristiéle da Silva Ribeiro   +2 more
wiley   +1 more source

Ultrastructural evidence for completion of the entire miracidial maturation in intrauterine eggs of the digenean Brandesia turgida (Brandes, 1888) (Plagiorchiida: Pleurogenidae) [PDF]

, 2014
Results of this TEM study provide ultrastructural evidence that miracidial morphogenesis is fully completed within the intrauterine eggs situated in the most posterior uterine regions of the pleurogenid trematode Brandesia turgida (Brandes, 1888).
Conn, David Bruce, Miquel, Jordi, Poddubnaya, Larisa G., Zhokhov, Aleksander E., Świderski, Zdzisław   +4 more
core   +2 more sources

Bony fish genomes: Status and gaps

Journal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira, Carmen Bouza, Paulino Martínez, Diego Robledo   +3 more
wiley   +1 more source

Seed traits and germination in the Cactaceae family: A review across Americas

Botan‪ical Sciences, 2020
Background: Cactaceae is the fifth taxonomic group with the highest proportion of threatened species and among the angiosperms, the most vulnerable to human disturbance.
Duniel Barrios, Jorge A. Sánchez, Joel Flores, Enrique Jurado   +3 more
doaj   +1 more source