Figure 1. Phenotypic manifestation of parents and sequentially derived nascent near-allotetraploids (NsAt) by subgenomes extraction

注：a, b, c和d图分别表示玉米、四倍体多年生大刍草、摩擦禾和异源六倍体MTP的植株和种子；e, f, g和h分别表示MTP与玉米回交一代的植株表型多样性；i图表示MTP与玉米回交一代的果穗；j, k, l, m, n和o图分别表示抽提异源四倍体玉米S1-S6代的果穗；p表示抽提异源四倍体玉米S6代植株；q和r图分别表示利用抽提异源四倍体改良同源四倍体的植株和果穗性状。

Figure 2. A workable route to synthesize new allopolyploid materials, broaden germplasm resources, and improve polyploid maize or maize inbreds.

参考文献

Muhammad Zafar Iqbal, Xiaodong Wen, Lulu Xu, et al. Multi-species polyploidization, chromosome shuffling, and genome extraction in Zea/Tripsacum hybrids, Genetics, 2023; iyad029, https://doi.org/10.1093/genetics/iyad029.

Yan X, Cheng M, Li Y, et al. Tripsazea, a Novel Trihybrid of Zea mays, Tripsacum dactyloides, and Zea perennis. G3 (Bethesda). 2020, 10(2): 839-848. 

Iqbal MZ, Cheng M, Su Y, et al. Allopolyploidization facilitates gene flow and speciation among corn, Zea perennis and Tripsacum dactyloides. Planta. 2019, 249(6): 1949-1962. 

李影正, 严旭, 李晓锋等.玉米野生近缘种属研究利用进展. 科学通报, 2022, 67(36): 4370-4387.

作者和项目基金

论文链接：

https://doi.org/10.1093/genetics/iyad029