然后该组织利用这种知识，并使用常规育种技术以及标志协助选育，获得两种新的作物品种。
The organization then took that knowledge and used conventional breeding techniques as well as marker-assisted selection to derive two new varieties of the crop.
科学家测出了玉米的基因组序列，为全世界的致力于在面对饥饿与气候变化的情况下改善玉米品种的植物育种者提供了数据。
Scientists have sequenced the genome of maize, providing data for plant breeders around the world aiming to improve maize varieties in the face of hunger and climate change.
已有多种方法被用于提高地方良种的性能，包括杂交育种，以及通过与良种的回交和品系内选育进行的品种改良。
Various approaches have been used to improve the performance of adapted indigenous stock, including cross-breeding and upgrading through back-crossing with improved breeds, and within-line selection.
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