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Fig. 1 | BMC Plant Biology

Fig. 1

From: Fast-track breeding system to introduce CTV resistance of trifoliate orange into citrus germplasm, by integrating early flowering transgenic plants with marker-assisted selection

Fig. 1

Scheme of fast-track breeding system to introduce CTV resistance into citrus germplasm. Precocious transgenic trifoliate orange that overexpresses CiFT (T0–2-11) was used as a primary pollen parent for the CTV resistance donor. BC progenies with T-DNA integrated regions generally flower around 3 weeks after planting. F1–2-11, BC1–7-13, and BC2–72 were selected as the pollen parents with DNA markers, to possess CTV resistance and transgenes. In 2016, the flowering times of the seed parent and transgenic seedling were coordinated, to promote the breeding from the BC2 to the BC3 generation, in a single year

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BMC Plant Biology

ISSN: 1471-2229

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