Butterfly wing

The butterfly genus Heliconius is an excellent system to study hybridization and introgression but most studies have focused on closely related species such as H. cydno and H. melpomene. Here we characterize genome-wide patterns of introgression between H. besckei, the only species with a red and yellow banded ‘postman’ wing pattern in the tiger-striped silvaniform clade, and co-mimetic H. melpomene nanna.

15p viaristotle 29-01-2022 8 0   Download

Butterfly wing color patterns emerge as the result of a regular arrangement of scales produced by epithelial scale cells at the pupal stage. These color patterns and scale arrangements are coordinated throughout the wing. However, the mechanism by which the development of scale cells is controlled across the entire wing remains elusive.

13p viwyoming2711 16-12-2020 5 1   Download

Eyespot color pattern formation on butterfly wings is sensitive to physical damage and physical distortion as well as physical contact with materials on the surface of wing epithelial tissue at the pupal stage. Contact-mediated eyespot color pattern changes may imply a developmental role of the extracellular matrix in morphogenic signal propagation.

19p viwyoming2711 16-12-2020 10 1   Download

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.

77p japet75 30-01-2013 42 6   Download

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. Butterflies comprise the true butterflies (superfamily Papilionoidea), the skippers (superfamily Hesperioidea) and the moth-butterflies (superfamily Hedyloidea). All the many other families within the Lepidoptera are referred to as moths.

161p japet75 30-01-2013 42 6   Download

Gecko’s feet, lotus leaves, blue butterfly wings, spider’s silk, fireflies, mother-of-pearl…. All these wonders of nature, which traditionally filled the pages of natural history magazines have attracted the attention of materials scientists over the past decades. They have often been presented as models to design and engineer optimal structures. And this renewed interest in natural systems has undoubtedly brought about innovating strategies in chemistry, materials science and nanotechnology....

540p nhatkyvodanh 24-07-2012 55 5   Download

This edited volume contains a selection of chapters that are an outgrowth of the European Conference on Mathematical and Theoretical Biology (ECMTB05, Dresden, Germany, July 2005). The peer-reviewed contributions show that mathematical and computational approaches are absolutely essential for solving central problems in the life sciences, ranging from the organizational level of individual cells to the dynamics of whole populations.

0p chuyenphimbuon 21-07-2012 54 6   Download

Medina et al. Nanoscale Research Letters 2011, 6:369 http://www.nanoscalereslett.com/content/6/1/369 NANO EXPRESS Open Access Hyperspectral optical imaging of two different species of lepidoptera José Manuel Medina1*, Sérgio Miguel Cardoso Nascimento1 and Pete Vukusic2 Abstract In this article, we report a hyperspectral optical imaging application for measurement of the reflectance spectra of photonic structures that produce structural colors with high spatial resolution.

5p dauphong13 09-02-2012 51 8   Download

The Art of Public Speaking For practise on forceful selections, use "The Irrepressible Conflict," page 67; "Abraham Lincoln," page 76, "Pass Prosperity Around," page 470; "A Plea for Cuba," page 50. FOOTNOTES: [Footnote 2: Those who sat in the pit or the parquet.] [Footnote 3: Hamlet, Act III, Scene 2.] "1_1_10"CHAPTER X. FEELING AND ENTHUSIASM Enthusiasm is that secret and harmonious spirit that hovers over the production of genius. −−ISAAC DISRAELI, Literary Character.

5p anhheomap 13-12-2010 86 11   Download