Asset Details
Do you wish to reserve the book?
Genetic Diversity in Wild and Weedy Aegilops, Amblyopyrum, and Secale Species—A Preliminary Survey
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Genetic Diversity in Wild and Weedy Aegilops, Amblyopyrum, and Secale Species—A Preliminary Survey
Do you wish to request the book?
Genetic Diversity in Wild and Weedy Aegilops, Amblyopyrum, and Secale Species—A Preliminary Survey
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Genetic Diversity in Wild and Weedy Aegilops, Amblyopyrum, and Secale Species—A Preliminary Survey
2002
Overview
The wild and weedy relatives of bread wheat, Triticum aestivum L., are suggested as potential sources of useful alleles for bread wheat improvement. For example, the genus Aegilops L. has contributed two of the three bread wheat genomes. In this study we measured the nature and extent of allozyme variation for 10 isozymes in three diploid and eight polyploid Aegilops, one Amblyopyrum (Jaub. & Spach), and one feral Secale L. species collected from 15 populations in their centers of origin in Syria, Lebanon, Turkey, and California. The predominantly autogamous Aegilops species were, to a large extent, homozygous and homogeneous. The presence of heterozygous genotypes in Aegilops tauschii Coss. (H0 = 0.0033 ± 0.01) and Ae. crassa Boiss (H0 = 0.0048 ± 0.08) indicated the possibility of limited facultative outcrossing in these Aegilops species. The obligate outcrossers, Amblyopyrum muticum (Boiss.) Eig (He = 0.09 ± 0.16) and Secale cereale L. (He = 0.09 − 0.13), showed less than expected genetic variation. The extent and nature of genetic variation were identical between the introduced Californian Ae. cylindrica Host and that which occurs in the Fertile Crescent (He = 0.00); however, in Ae. triuncialis L., the introduced Californian population had a higher genetic diversity estimate (He = 0.06 ± 0.12) than the population from the Fertile Crescent (He = 0.00). The average genetic distance between the polyploid Aegilops species was greater (D = 0.64 ± 0.28) than that observed between the diploid Aegilops species (D = 0.18 ± 0.10), or between the diploid Aegilops and weedy S. cereale (D = 0.52 ± 0.06). We discuss the implication of these findings for germplasm collection and wheat breeding.
Publisher
Crop Science Society of America,American Society of Agronomy
Subject
/ Agronomy. Soil science and plant productions
/ alleles
/ autogamy
/ Biological and medical sciences
/ diploidy
/ Fundamental and applied biological sciences. Psychology
/ Generalities. Genetics. Plant material
/ Genetic resources, diversity
/ Genetics
/ Genetics and breeding of economic plants
/ Lebanon
/ Secale
/ surveys
/ Syria
/ Weeds
/ Wheat
We currently cannot retrieve any items related to this title. Kindly check back at a later time.