Sequence Characterized Amplified Regions Linked with Apomictic Mode of Reproduction in Four Different Apomictic Cenchrus Species

2016 ◽  
Author(s):  
Kumar Suresh
Keyword(s):  
Mode Of Reproduction ◽  
Sequence Characterized Amplified Regions

The comparative constitution of twinship: strategies and paradoxes

Twin Research ◽  
2000 ◽  
Vol 3 (3) ◽  
pp. 142-147 ◽  
Author(s):  
EA Stewart
Keyword(s):  
Twentieth Century ◽  
Social Construction ◽  
Social Systems ◽  
Classification Systems ◽  
Mode Of Reproduction ◽  
Twin Research ◽  
The Social

AbstractIn both traditional and modern societies, twinship, as an unusual mode of reproduction, involves difficulties for social systems in maintaining consistent classification systems. It is proposed that the most prevalent response to twinship involves various ‘strategies of normalisation’ to defuse and contain the potential disruption. This proposition is illustrated and analysed in relation to ethnographic maternal drawn mainly (but not exclusively) from African communities in the twentieth century. Following a discussion of twin infanticide as the most extreme of the normalising strategies, the article concludes by identifying a number of paradoxes in the social construction of twinship. Twin Research (2000) 3, 142–147.

Application of Sequence-Characterized Amplified Regions to the Detection of Self-biting Behavior in the Blue Fox

2015 ◽  
Vol 9 (2) ◽  
pp. 73-79
Author(s):  
Zongyue Liu ◽  
Erjun Ren ◽  
Shiyong Wang ◽  
Xiumei Xing ◽  
Fuhe Yang
Keyword(s):  
Blue Fox ◽  
Sequence Characterized Amplified Regions ◽  
Biting Behavior

scholarly journals On the evolution of the model of shifting mode of reproduction

2018 ◽  
Vol 12 (4) ◽  
Author(s):  
Vladimir I. Maevsky ◽  
◽  
Sergey Yu. Malkov ◽  
Aleksandr A. Rubinstein ◽  
◽  
...  
Keyword(s):  
Mode Of Reproduction

DEVELOPMENTAL STUDIES ON EUPHORBIA ESULA L.: MORPHOLOGY OF THE ROOT SYSTEM

1963 ◽  
Vol 41 (5) ◽  
pp. 579-589 ◽  
Author(s):  
M. V. S. Raju ◽  
T. A. Steeves ◽  
R. T. Coupland
Keyword(s):  
Root System ◽  
Lateral Roots ◽  
Primary Root ◽  
Cambial Activity ◽  
Euphorbia Esula ◽  
Developmental Studies ◽  
Limited Growth ◽  
Mode Of Reproduction ◽  
Shoot Buds ◽  
Adverse Conditions

The significance of Euphorbia esula L. as a weed is related to its capacity to persist under adverse conditions and to its mode of reproduction. In both these properties, the root system plays an important role. The root system is initially established by seedlings. The seedling has a vigorous primary root with extensive longitudinal growth and considerable cambial activity. Such a root has been designated a "long" root. By contrast, the first lateral roots produced on the primary root have limited growth and no cambial activity. These roots have been termed "short" roots. Thus, the seedling exhibits a "heterorhizic" pattern. Lateral long roots also arise on the primary root of seedlings but their origin is delayed until cambial activity has begun. Such lateral long roots arise much earlier on seedlings growing in denuded areas than on those growing in areas covered by dense vegetation. The mature root system is described in terms of horizontal and vertical long roots, which make up the conspicuous framework of the system, and of the short roots which they produce. Long roots produce shoot-buds and the origin of these structures is delayed until cambial activity has started. Short roots do not give rise to shoot-buds. Cambial activity in long roots appears to be connected with bud production and its absence in short roots probably underlies their inability to produce buds.L'importance de Euphorbia esula L. comme mauvaise herbe est connexé a son capacité de persister dans les situations hostiles et à sa methode de reproduction. Dans ces deux caractéristiques, le système des racines a une signification profunde. Initialement le système des racines s'établit dans le semis. Le semis a une racine primaire très forte avec beaucoup de croissance longitudinale et avec une activité considérable du cambium. Une racine de cette espèce s'appelle une "longue" racine (long root). Par contre, les premières racines latérales que poussent sur la racine primaire ont croissance limité et aucun activité du cambium. Ces racines s'appellent les "courtes" racines (short roots). De cette façon, le semis montre un dessin "heterorhizique" (heterorhizic). Les longues racines latérales ont aussi leur origine sur la racine primaire du semis, mais l'origine est retardé jusqu'au commencement de l'activité du cambium. Les racines de cette espèce apparaissent beaucoup plus tôt sur les semis qui sont situés en terre sans autre végétation, que sur ceux qui sont situés au milieu des autres plantes. Le système adulte des racines se décrit sous forme des longues racines de l'espèce horizontale et verticale, lesquelles constituent la charpente bien visible du système, et des courtes racines que sont produites par les longues racines. Les longues racines produisent les bourgeons, mais l'origine des bourgeons est retardé jusqu'au commencement de l'activité du cambium dans les racines. Les courtes racines ne produisent pas les bourgeons. Il paraît que l'activité du cambium dans les longues racines soit corrélative avec l'initiation des bourgeons et l'absence du cambium dans les courtes racines explique probablement leur incapacité à produire les bourgeons.

Genetic diversity and mode of reproduction in French populations of the aphid Rhopalosiphum padi L.

Heredity ◽  
1996 ◽  
Vol 76 (3) ◽  
pp. 305-313 ◽  
Author(s):  
J-C Simon ◽  
E Carrel ◽  
P D N Hebert ◽  
C A Dedryver ◽  
J Bonhomme ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rhopalosiphum Padi ◽  
Mode Of Reproduction
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