Agrobiodiversity Conservation: Securing the Diversity of Crop Wild Relatives and Landraces
Genetic variation used in variety breeding originates to a large extent from the ancestral species of the crops and is being managed by breeders in breeding pools. Genetic bottle- necks caused right at the beginning of the domestication process or caused by breeding at a later stage of the dom...
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| Những tác giả chính: | , , , , , |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
CABI
2014
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| 主题: | |
| 在线阅读: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/37091 |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| 总结: | Genetic variation used in variety breeding
originates to a large extent from the ancestral
species of the crops and is being managed by
breeders in breeding pools. Genetic bottle-
necks caused right at the beginning of the
domestication process or caused by breeding
at a later stage of the domestication process
(e.g. Kilian et al., 2006) necessitates the intro-
gression of novel genetic variation from the
crop's gene pool into the breeding pools.
Crop wild relatives (CWR) and landraces
(LR) are part of this gene pool, which is
tapped by breeders if need arises. Without
this flow of novel genes from wild species
and landraces into the breeding pools the
adaptability of crops to changing environ-
mental conditions and user demands would
be very difficult to maintain today and in the
future. The demand for traits and trait varia-
tion can be forecasted by plant breeders for
the next 10-20 years while a prognosis of the
future needs of agriculture is not possible
beyond this time horizon. |
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