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1. Defining the morphological quality of fossil footprints. Problems and principles of preservation in tetrapod ichnology with examples from the Palaeozoic to the present

Author:
Marchetti, Lorenzo; Belvedere, Matteo; Voigt, Sebastian; Klein, Hendrik; Castanera, Diego; Díaz-Martínez, Ignacio; Marty, Daniel; Xing, Lida; Feola, Silverio; Melchor, Ricardo N.; Farlow, James O.
Source:
Earth-science reviews 2019 v.193 pp. 109-145
ISSN:
0012-8252
Subject:
morphs,   etc   ; diagenesis; fossils; vertebrates;     Show all 4 Subjects
Abstract:
... The morphology of fossil footprints is the basis of vertebrate footprint ichnology. However, the processes acting during and after trace fossil registration which are responsible for the final morphology have never been precisely defined, resulting in a dearth of nomenclature. Therefore, we discuss the concepts of ichnotaphonomy, ichnostratinomy, taphonomy, biostratinomy, registration and diagenes ...
DOI:
10.1016/j.earscirev.2019.04.008

2. Sympatric Epichloë species and chemotypic profiles in natural populations of Lolium perenne

Author:
Soto-Barajas, Milton C.; Vázquez-de-Aldana, Beatriz R.; Álvarez, Amador; Zabalgogeazcoa, Iñigo
Source:
Fungal ecology 2019 v.39 pp. 231-241
ISSN:
1754-5048
Subject:
morphs,   etc   ; Lolium perenne; ergovaline; grasses; hybrids; sympatry;     Show all 6 Subjects
Abstract:
... The distribution of different Epichloë species within eight natural populations of Lolium perenne was studied. In total, 40.2% of the asymptomatic plants were infected by Epichloë festucae var. lolii or by Epichloë typhina. Both species occurred in sympatry in seven grass populations, and some plants had dual infections by both taxa. No hybrid taxa such as Epichloë hybrida were detected. Epichloë ...
DOI:
10.1016/j.funeco.2019.02.013

3. Leaf anatomical features of the Eriosema campestre Benth. (Leguminosae, Papilionoideae, Phaseoleae) complex and potential taxonomic implications

Author:
Pacheco Seixas, Diana; Fortuna-Perez, Ana Paula; Rodrigues, Tatiane Maria
Source:
Flora 2019 v.253 pp. 107-115
ISSN:
0367-2530
Subject:
morphs,   etc   ; Eriosema; herbaria; petioles; phloem; trichomes;     Show all 6 Subjects
Abstract:
... Identification of taxa of the Eriosema campestre Benth. (Leguminosae, Papilionoideae, Phaseoleae) complex has proven difficult due to their morphological uniformity. Eriosema campestre is currently considered to comprise three varieties (E. campestre var. campestre, E. campestre var. delicatula Fortunato and E. campestre var. macrophyllum (Grear) Fortunato), which are mainly distinguished by chara ...
DOI:
10.1016/j.flora.2019.03.011

4. The Cantabrian Lower Magdalenian striated hinds on scapulae: Towards a new definition of a graphic morphotype

Author:
Rivero, Olivia; Garate, Diego; Salazar, Sergio; Intxaurbe, Iñaki
Source:
Quaternary international 2019 v.506 pp. 69-79
ISSN:
1040-6182
Subject:
morphs,   etc   ; fossils; scapula; space and time;     Show all 4 Subjects
Abstract:
... From the graphic point of view, the theme of the “striated hind” is a true fossil director of the Cantabrian Lower Magdalenian. Represented for the most part on scapulae in the case of portable art, it also possesses its correlation in parietal art. The C14 dates currently available do not allow any doubts about its chrono-cultural attribution. However, the concept of “striated engraving”, referri ...
DOI:
10.1016/j.quaint.2019.01.037

5. Morphological Variability of Roach Rutilus rutilus (L.) from the Volga Reach of Rybinsk Reservoir

Author:
Komova, N. I.
Source:
Inland water biology 2018 v.11 no.3 pp. 371-373
ISSN:
1995-0829
Subject:
morphs,   etc   ; Rutilus rutilus; herbivores;     Show all 3 Subjects
Abstract:
... A comparative analysis of literature data and our own results on the morphology of roach from the Volga Reach (Rybinsk Reservoir) in different years is conducted. Recently, (from 2007 to 2010), the morphological characteristics of the roach have been similar to those observed between 1976 and 1978. The roach is characterized by an intermediate position between the herbivorous and malacophagous mor ...
DOI:
10.1134/S1995082918030069

6. New characteristics of the papillae phytolith morphotype recovered from eleven genera of cyperaceae

Author:
Stevanato, Mayra; Rasbold, Giliane Gessica; Parolin, Mauro; Domingos Luz, Leandro; Lo, Edward; Weber, Philipy; Trevisan, Rafael; Galeazzi Caxambu, Marcelo
Source:
Flora 2019 v.253 pp. 49-55
ISSN:
0367-2530
Subject:
morphs,   etc   ; Cyperaceae; leaves; paleoecology; phytoliths; sediments; tracheids; wet environmental conditions;     Show all 8 Subjects
Abstract:
... Cyperaceae plants are significant indicators for wet environments in paleoenvironmental studies. The characterization of modern phytoliths in Cyperaceae plants is fundamental for the identification and the taxonomic correlation with the morphologies preserved in sediments. This study proposes to expand the characterization and quantification of Cyperaceae phytoliths, including variations in orname ...
DOI:
10.1016/j.flora.2019.03.012

7. New and interesting diatoms from Tibet: I. Description of a new species of Clipeoparvus Woodbridge et al.

Author:
Liu, Qi; Li, Jiajia; Nan, Fangru; Feng, Jia; Lv, Junping; Xie, Shulian; Kociolek, John Patrick
Source:
Diatom research 2019 v.34 no.1 pp. 33-38
ISSN:
2159-8347
Subject:
morphs,   etc   ; Bacillariophyceae; biogeography; new species; China; Turkey (country);     Show all 6 Subjects
Abstract:
... We present light and scanning electron microscopical observations on frustules of a new species of Clipeoparvus Woodbridge et al. from Tibet. Cells are small, lens-shaped to conical, have internally occluded areolae and lack any processes. The Tibetan species differs from Clipeoparvus anatolicus Woodbridge, E.J. Cox & Roberts, the only other known species of the genus described from Turkey, by the ...
DOI:
10.1080/0269249X.2019.1578697

8. Xenophyophores (Rhizaria, Foraminifera) from the Eastern Clarion-Clipperton Zone (equatorial Pacific): the Genus Psammina

Author:
Gooday, Andrew J.; Holzmann, Maria; Goineau, Aurélie; Kamenskaya, Olga; Melnik, Vyacheslav F.; Pearce, Richard B.; Weber, Alexandra A.-T.; Pawlowski, Jan
Source:
Protist 2018 v.169 no.6 pp. 926-957
ISSN:
1434-4610
Subject:
morphs,   etc   ; Retaria; fauna; holotypes; monophyly; new species;     Show all 6 Subjects
Abstract:
... Xenophyophores are important megafaunal organisms in the abyssal Clarion-Clipperton Zone (CCZ; equatorial Pacific), a region hosting commercially significant deposits of polymetallic nodules. Previous studies assigned those with attached, fan-like tests to Psammina limbata, a species described from the central CCZ based on morphology. Here, we redescribe the holotype of P. limbata and then show th ...
DOI:
10.1016/j.protis.2018.09.003

9. Characterization and comparison of activity profiles exhibited by the cave and surface morphotypes of the blind Mexican tetra, Astyanax mexicanus

Author:
Carlson, Brian M.; Gross, Joshua B.
Source:
Comparative biochemistry and physiology 2018 v.208 pp. 114-129
ISSN:
1532-0456
Subject:
morphs,   etc   ; Astyanax mexicanus; ecosystems; fish; locomotion;     Show all 5 Subjects
Abstract:
... Departure from normal circadian rhythmicity and exposure to atypical lighting cues has been shown to adversely affect human health and wellness in a variety of ways. In contrast, adaptation to extreme environments has led many species to alter or even entirely abandon their reliance upon cyclic environmental inputs, principally daily cycles of light and darkness. The extreme darkness, stability an ...
DOI:
10.1016/j.cbpc.2017.08.002

10. Evaluation of Morphological Characteristics to Delineate Taxa of the Genus Trigonopyxis (Amoebozoa, Arcellinida)

Author:
Schulz, Garvin; Maraun, Mark; Völcker, Eckhard; Scheu, Stefan; Krashevska, Valentyna
Source:
Protist 2018 v.169 no.2 pp. 190-205
ISSN:
1434-4610
Subject:
morphs,   etc   ; Arcellinida; environmental factors; paleoecology; Andes region;     Show all 5 Subjects
Abstract:
... Morphological features are often the only characteristics suitable for identification of taxa in testate amoebae, especially in ecological and palaeoecological studies. However, whereas the morphology of some species is rather stable it may vary considerably in others. Within the order Arcellinida the genus Trigonopyxis with the type species Trigonopyxis arcula is morphologically highly variable. ...
DOI:
10.1016/j.protis.2018.02.005

11. The genetic structure of flax illustrates environmental and anthropogenic selections that gave rise to its eco-geographical adaptation

Author:
Sertse, Demissew; You, Frank M.; Ravichandran, Sridhar; Cloutier, Sylvie
Source:
Molecular phylogenetics and evolution 2019 v.137 pp. 22-32
ISSN:
1055-7903
Subject:
morphs,   etc   ; breeding; crops; flax; genetic variation; germplasm; haplotypes; loci; oils; photoperiod; population structure; provenance;     Show all 12 Subjects
Abstract:
... Flax, one of the eight founder crops of agriculture, has been cultivated for its oil and/or fiber for millennia. Understanding genetic divergence and geographic origins of germplasm in line with their cultivation history and ecological adaptation are essential for conservation and breeding. Here we performed a genome-wide assessment based on more than 51,000 single nucleotide polymorphic sites def ...
DOI:
10.1016/j.ympev.2019.04.010

12. A new zooarchaeological application for geometric morphometric methods: Distinguishing Ovis aries morphotypes to address connectivity and mobility of prehistoric Central Asian pastoralists

Author:
Haruda, A.F.; Varfolomeev, V.; Goriachev, A.; Yermolayeva, A.; Outram, A.K.
Source:
Journal of archaeological science 2019 v.107 pp. 50-57
ISSN:
0305-4403
Subject:
morphs,   etc   ; archaeology; domestication; geometry; humans; models; morphometry; pastoralism; sheep; steppes; trade; variance; Kazakhstan;     Show all 13 Subjects
Abstract:
... Geometric morphometric methods (GMM), which were developed to characterize the shape and size of biological organisms, have been applied within zooarchaeology over the past decade to address animal domestication processes and to refine morphological criteria to differentiate between taxa. However, there has been limited utilization of these methods to discriminate between populations of the same t ...
DOI:
10.1016/j.jas.2019.05.002

13. Aggression, color signaling, and performance of the male color morphs of a Brazilian lizard (Tropidurus semitaeniatus)

Author:
Bruinjé, Andre C.; Coelho, Felipe E. A.; Paiva, Tales M. A.; Costa, Gabriel C.
Source:
Behavioral ecology and sociobiology 2019 v.73 no.6 pp. 72
ISSN:
0340-5443
Subject:
morphs,   etc   ; aggression; chest; color; females; head; lizards; males; mating behavior; reproductive success;     Show all 10 Subjects
Abstract:
... Behavior can help to establish dominance in intrasexual interactions, preventing more costly aggressive interactions and improving access to mates. Distinct color morphs often correlate with behavior, driving differential reproductive success between them. The lizard Tropidurus semitaeniatus usually expresses two male color morphs, Yellow or Black. It is likely that morphs play a role in reproduct ...
DOI:
10.1007/s00265-019-2673-0

14. Decapentaplegic function in wing vein development and wing morph transformation in brown planthopper, Nilaparvata lugens

Author:
Li, Xiang; Liu, Fangzhou; Wu, Chao; Zhao, Jing; Cai, Wanlun; Hua, Hongxia
Source:
Developmental biology 2019 v.449 no.2 pp. 143-150
ISSN:
0012-1606
Subject:
morphs,   etc   ; Nilaparvata lugens; RNA interference; genes; growth and development; insects; pests; rice; wings;     Show all 9 Subjects
Abstract:
... The decapentaplegic (dpp) gene plays a variety of roles in diverse cellular and molecular processes of the growth and development. In insects, dpp is mainly required for dorsal-ventral patterning and appendage formation. The brown planthopper (BPH) Nilaparvata lugens, a major pest of rice, possesses two distinct wing morphs described as long-winged (LW) and short-winged (SW) morphs. With our lab-m ...
DOI:
10.1016/j.ydbio.2019.02.016

15. Morphological changes and phagocytic activity during the interaction of human neutrophils with Sporothrix schenckii: An in vitro model

Author:
Curtiellas-Piñol, Vicente; Ventura-Juárez, Javier; Ruiz-Baca, Estela; Romo-Lozano, Yolanda
Source:
Microbial pathogenesis 2019 v.129 pp. 56-63
ISSN:
0882-4010
Subject:
morphs,   etc   ; Sporothrix schenckii; coculture; conidia; histopathology; humans; models; neutrophils; phagocytosis; scanning electron microscopy; viability; yeasts;     Show all 12 Subjects
Abstract:
... Histopathological studies of human sporotrichosis lesions show pyogenic and granulomatous processes in which polymorphonuclear neutrophils (PMNs) play a central role. Few studies regarding the events associated with the interaction of human PMNs with Sporothrix schenckii have been made despite their importance in the clinical manifestations of the disease. In this study, human PMNs were co-culture ...
DOI:
10.1016/j.micpath.2019.01.041

16. Report on Wild Eri Silkworm Samia canningii Hutton (Lepidoptera: Saturniidae) from Arunachal Pradesh, India

Author:
Taba, Meth; Gogoi, Hiren
Source:
National Academy science letters 2019 v.42 no.2 pp. 147-150
ISSN:
0250-541X
Subject:
morphs,   etc   ; Samia cynthia; abdomen; biodiversity; cocoons; color; instars; larvae; legs; silkworms; Himalayan region; India;     Show all 12 Subjects
Abstract:
... This study was conducted to study morphology of the life stages of wild eri silkworm Samia canningii Hutton from Arunachal Pradesh, India, which is the easternmost part of Himalaya biodiversity hotspot. Fifth instar larvae are of three forms: (1) bluish white, (2) yellow and (3) bluish green. Colour of tubercle like projections in bluish white and bluish green larvae is blue in 5th instar. In yell ...
DOI:
10.1007/s40009-018-0678-2

17. Evolution of phytolith deposition in modern bryophytes, and implications for the fossil record and influence on silica cycle in early land plant evolution

Author:
Thummel, Ryan V.; Brightly, William H.; Strömberg, Caroline A. E.
Source:
Thenew phytologist 2019 v.221 no.4 pp. 2273-2285
ISSN:
0028-646X
Subject:
morphs,   etc   ; Bryophyta; disease diagnosis; embryophytes; fossils; mosses and liverworts; phylogeny; phytoliths; silica; surveys; tissues;     Show all 11 Subjects
Abstract:
... Anecdotal evidence indicating substantial silica accumulation in tissues of bryophytes suggests that silica (phytolith) deposition evolved early on in embryophytes. To test this hypothesis, we conducted the first survey of phytolith content representing the major liverwort, moss and hornwort clades. We also assessed the diagnostic value of bryophyte phytoliths. Silica extracted from bryophyte mate ...
DOI:
10.1111/nph.15559

18. Identification of a novel sperm class and its role in fertilization in Drosophila

Author:
Alpern, Joshua H. M.; Asselin, Michelle M.; Moehring, Amanda J.
Source:
Journal of evolutionary biology 2019 v.32 no.3 pp. 259-266
ISSN:
1010-061X
Subject:
morphs,   etc   ; Drosophila pseudoobscura; female reproductive system; females; males; sperm competition; spermatozoa; storage time;     Show all 8 Subjects
Abstract:
... In many species, males have evolved to produce a sterile sperm (parasperm) in conjunction with fertilizing sperm (eusperm). Here, we document evidence of males depositing two morphologically distinct types of parasperm (1 and 2) into the female reproductive tract in Drosophila pseudoobscura. These parasperm differ in length, shape, amount produced, amount in long‐term storage and may have separate ...
DOI:
10.1111/jeb.13409

19. The distributions of morphologically specialized hummingbirds coincide with floral trait matching across an Andean elevational gradient

Author:
Sonne, Jesper; Zanata, Thais B.; Martín González, Ana M.; Cumbicus Torres, Nixon L.; Fjeldså, Jon; Colwell, Robert K.; Tinoco, Boris A.; Rahbek, Carsten; Dalsgaard, Bo
Source:
Biotropica 2019 v.51 no.2 pp. 205-218
ISSN:
0006-3606
Subject:
morphs,   etc   ; Bayesian theory; Podocarpus; altitude; flowers; foraging; hummingbirds; models; national parks; prediction; Andes region; Ecuador;     Show all 12 Subjects
Abstract:
... Morphological trait matching between species affects resource partitioning in mutualistic systems. Yet, the determinants of spatial variation in trait matching remain largely unaddressed. Here, we generate a hypothesis that is based on the geographical distributions of species morphologies. To illustrate our hypothesis, as a study system we use hummingbirds in the tropical Andes. Hummingbirds with ...
DOI:
10.1111/btp.12637

20. The role of structural genomic variants in population differentiation and ecotype formation in Timema cristinae walking sticks

Author:
Lucek, Kay; Gompert, Zachariah; Nosil, Patrik
Source:
Molecular ecology 2019 v.28 no.6 pp. 1224-1237
ISSN:
0962-1083
Subject:
morphs,   etc   ; DNA; Timema cristinae; adaptive radiation; ecotypes; gene flow; genes; genetic variation; nucleotide sequences; structural genomics;     Show all 10 Subjects
Abstract:
... Theory predicts that structural genomic variants such as inversions can promote adaptive diversification and speciation. Despite increasing empirical evidence that adaptive divergence can be triggered by one or a few large inversions, the degree to which widespread genomic regions under divergent selection are associated with structural variants remains unclear. Here we test for an association bet ...
DOI:
10.1111/mec.15016