Chromosome length of 13 Ipomoea species.

Chromosome length of 13 Ipomoea species.

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Background: Sweet potato (Ipomoea batatas (L.) Lam.), a key global root crop, faces challenges due to its narrow genetic background. This issue can be addressed by utilizing the diverse genetic resources of sweet potato’s wild relatives, which are invaluable for its genetic improvement. Methods: The morphological differences in leaves, stems, and r...

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Context 1
... the exception of I. batatas, which was revealed to be a hexaploid with 90 chromosomes, the remaining species were diploids with 30 chromosomes, except for I. pestigridis, which had 28 chromosomes (Table 2, Figure 2). A comparison of chromosome lengths (Table 3) indicated I. batatas had the shortest chromosomes (average length of 0.52 µm; the longest chromosome was 2.795 times longer than the shortest chromosome). I. digitata had the longest chromosomes (average length of 1.07 µm). ...