LAKE ANDREW WYLDE HINGSTON,LAKE ANDREW WYLDE HINGSTON,DREWRY RICKIE ELIZABETH,DREWRY RICKIE ELIZABETH
申请号：
PL05250580
公开号：
PL1561375T3
申请日:
2005.02.02
申请国别(地区):
PL
年份:
2012
代理人:
摘要：
The present invention relates to improved cultivars, varieties, lines or plants of annual medics (Medicago genus) wherein the majority of seed pods, upon reaching maturity, remain attached to their respective pedicels (this being referred to as the "pod holding" trait). In particular, the present invention relates to improved cultivars, varieties, lines or plants of annual medics (Medicago genus), having a mutant form of the gene for pod shedding (ie for formation of an abscission layer between maturing seed pods and their respective pedicels), thereby resulting in the aforementioned "pod holding" trait.In a further aspect of the invention, seed from known cultivars or wild-type varieties of annual medics (Medicago genus) are subjected to treatment with a mutagenic agent, and improved cultivars, varieties, lines or plants having the aforementioned "pod holding" trait are isolated, eg by a selective breeding program.A yet further aspect of the invention relates to a method of transferring the "pod holding" trait from an annual medic having this trait to another annual medic of the genus Medicago by a process of controlled cross-breeding of the annual medic having the trait with said other annual medic and selection of progeny or descendants having the "pod holding" trait. In particular, the method can include the following steps:(i) cross-breeding the annual medic having the trait with said other annual medic, and collecting hybrid seed resulting from this cross-breeding(ii) planting said hybrid seed and producing F1 hybrid (first generation) plants therefrom(iii) allowing the F1 plants to self-pollinate and set seed(iv) planting the seed from the F1 plants and producing F2 (second generation) plants therefrom(v) assessing the F2 or any later generation of plants for said "pod holding" trait and selecting said F2 or later generation plants having this trait.A still further aspect of the invention relates to a method of obtaining plants having the "pod holding" trait
