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The influence of temperature on meiosis

The influence of temperature on meiosis THE INFLUENCE OF TEMPERATURE ON MEIOSIS G. J. DOWRICK John Innes Horticultural Institution, Bayfordbury, Hertford, Herr.s Received 27.11.56 I. INTRODUCTION THE main purpose of this investigation has been to study the influence of temperature on meiosis but the results have also been used to gain further knowledge of chromosome structure and behaviour. Many previous experiments have shown that changes in temperature can affect the general pattern of meiosis as well as the form and behaviour of the chromosomes (Plough, 1917, 1921 ; White, 1934 ; Barber, 1941, 1942 ; Swanson, Ip, I942 and b, 1943, and Elliott, 1955). These earlier workers frequently considered only the influence of isolated temperatures or a comparatively small range of temperatures. Chromosomes may exhibit three major effects from changes in temperature. These are alterations in the frequency and changes in the position of chiasmata and variations in internal coiling. All three effects may occur simultaneously but for convenience chromosome coiling will be considered separately. Other minor effects will also be considered. 2. MATERIALS AND METHODS Clone 201 of Tradescantia bracteata and plants of Uvularia perfoliata have been used in these experiments. T. bracteata (2n = I 2) has six bivalents indistinguishable at meiosis. Tests http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Heredity Springer Journals

The influence of temperature on meiosis

Dowrick, G J
Heredity , Volume 11 (1) – Apr 1, 1957
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17 pages

 
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References (17)

Publisher
Springer Journals
Copyright
Copyright © 1957 by The Genetical Society of Great Britain
Subject
Biomedicine; Biomedicine, general; Human Genetics; Evolutionary Biology; Ecology; Cytogenetics; Plant Genetics and Genomics
ISSN
0018-067X
eISSN
1365-2540
DOI
10.1038/hdy.1957.4
Publisher site
See Article on Publisher Site

Abstract

THE INFLUENCE OF TEMPERATURE ON MEIOSIS G. J. DOWRICK John Innes Horticultural Institution, Bayfordbury, Hertford, Herr.s Received 27.11.56 I. INTRODUCTION THE main purpose of this investigation has been to study the influence of temperature on meiosis but the results have also been used to gain further knowledge of chromosome structure and behaviour. Many previous experiments have shown that changes in temperature can affect the general pattern of meiosis as well as the form and behaviour of the chromosomes (Plough, 1917, 1921 ; White, 1934 ; Barber, 1941, 1942 ; Swanson, Ip, I942 and b, 1943, and Elliott, 1955). These earlier workers frequently considered only the influence of isolated temperatures or a comparatively small range of temperatures. Chromosomes may exhibit three major effects from changes in temperature. These are alterations in the frequency and changes in the position of chiasmata and variations in internal coiling. All three effects may occur simultaneously but for convenience chromosome coiling will be considered separately. Other minor effects will also be considered. 2. MATERIALS AND METHODS Clone 201 of Tradescantia bracteata and plants of Uvularia perfoliata have been used in these experiments. T. bracteata (2n = I 2) has six bivalents indistinguishable at meiosis. Tests

Journal

Heredity – Springer Journals

Published: Apr 1, 1957

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