נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Could early gene flow have created similar allozyme-gene frequencies in cultivated and wild barley?
Year:
2001
Authors :
גניזי, אברהם
;
.
Volume :
48
Co-Authors:
Ladizinsky, G., Faculty of Agriculture, Hebrew University, P.O. Box 12, Rehovot 76100, Israel
Genizi, A., Department of Statistics, Volcani Agricultural Research Center, Beit Dagan, Israel
Facilitators :
From page:
101
To page:
104
(
Total pages:
4
)
Abstract:
The possible role of early gene flow between wild and cultivated barley in their similar esterase gene frequencies was tested in a simulation study. The hypothetical population consisted of 99.9% wild forms possessing three alleles of an esterase gene and 0.01% domesticated forms possessing one of these esterase alleles. Various rates of inbreeding, selection coefficients against the wild form and shifting cultivation methods were tested for their effect on the establishment of the domesticated form and the esterase gene flow between the two barley types. Of these factors, inbreeding rates, in the range of 90-99%, had the smallest effect on the establishment of the domesticated form under primitive cultivation. Via gene flow, the esterase allelic frequency in the domesticated form could be similar to that of the wild form under 90% outcrossing in the domesticated form for 115-230 years, an unrealistic situation for barley which normally exhibits about 1% outcrossing. It seems, therefore, that the similar esterase allelic frequencies in wild and cultivated barley is only partly due to gene flow, and it is more plausibly accounted for by multiple domestications.
Note:
Related Files :
Embryophyta
gene flow
Hordeum
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. vulgare
inbreeding
Tough-rachis
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20943
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:40
You may also be interested in
Scientific Publication
Could early gene flow have created similar allozyme-gene frequencies in cultivated and wild barley?
48
Ladizinsky, G., Faculty of Agriculture, Hebrew University, P.O. Box 12, Rehovot 76100, Israel
Genizi, A., Department of Statistics, Volcani Agricultural Research Center, Beit Dagan, Israel
Could early gene flow have created similar allozyme-gene frequencies in cultivated and wild barley?
The possible role of early gene flow between wild and cultivated barley in their similar esterase gene frequencies was tested in a simulation study. The hypothetical population consisted of 99.9% wild forms possessing three alleles of an esterase gene and 0.01% domesticated forms possessing one of these esterase alleles. Various rates of inbreeding, selection coefficients against the wild form and shifting cultivation methods were tested for their effect on the establishment of the domesticated form and the esterase gene flow between the two barley types. Of these factors, inbreeding rates, in the range of 90-99%, had the smallest effect on the establishment of the domesticated form under primitive cultivation. Via gene flow, the esterase allelic frequency in the domesticated form could be similar to that of the wild form under 90% outcrossing in the domesticated form for 115-230 years, an unrealistic situation for barley which normally exhibits about 1% outcrossing. It seems, therefore, that the similar esterase allelic frequencies in wild and cultivated barley is only partly due to gene flow, and it is more plausibly accounted for by multiple domestications.
Scientific Publication
You may also be interested in