Snail Chirality: The Unwinding
نویسنده
چکیده
Most snails are coiled clockwise, but in some species rare genetic variants with reverse coiling occur. Now, a molecular determinant of coiling direction has been identified, the cytoskeletal regulator formin.
منابع مشابه
Chiral Smectic C Liquid Crystal, Thick Sample Textures
The texture of ferroelectric chiral smectic liquid crystal confined between two aligning plates is studied in the case of thick samples i-esamples whose thickness is higher than the helical pitch. The helical texture with periodic unwinding discfination lines
متن کاملNon-adaptive speciation of snails by left-right reversal is facilitated on oceanic islands
The nearly neutral theory of molecular evolution predicts that small population size is essential for non-adaptive evolution. Evolution of whole-body left-right reversal in snails is generally a compelling example of non-adaptive speciation, because variants with reversed chirality would suffer from reduced mating opportunities within a population. Despite this reproductive disadvantage, sinist...
متن کاملToxicity Test of Plant Derived Molluscicides with Attractant Food Pellets against Snail, Lymnaea Acuminata
Use of molluscicides in the attractant food pellet (AFP) is an effective method of snail control. Different concentrations of these molluscicides viz. Azadirachta indica bark powder, Allium sativum bulb powder, Polianthes tuberosa bulb powder, Annona squamosa seed powder, their active components azadirachtin, allicin, hecogenin, acetogenin; herbal molluscicide pestoban and a synthetic m...
متن کاملGrowth Performance, Tibia Characteristics, Immune Response and Blood Metabolites of Broiler Chickens Fed Diets Containing Citrus Brown Snail (Caucasotachea Lencoranea) Powder as a Source of Calcium
Objective: An experiment was conducted to investigate the effects of citrus brown snail powder as a source of calcium on growth performance, tibia characteristics, immune response and blood metabolites in broiler chickens. Methods: One hundred and eighty 1-day old chicks were randomly distributed into four treatments, each of which had three replicates. Each replicate contains 15 chicks. The t...
متن کاملOptical Chirality Enhancement in Twisted Arrays of Plasmonic Nano-rods
An important property of electromagnetic fields, which arises from the interaction between fields and chiral molecules, is called optical chirality. By enhancing this field property, while maintaining constant input power, we are able to increase absorption of circularly polarized light by chiral molecules of a certain handedness. This enhancement is achieved through the use of achiral plasmoni...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Current Biology
دوره 26 شماره
صفحات -
تاریخ انتشار 2016