How was apical growth regulated in the ancestral land plant? Insights from the development of non-seed plants.
How was apical growth regulated in the ancestral land plant? Insights from the development of non-seed plants.
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DOI:
10.1093/plphys/kiac313
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发表时间:
2022-08-29
期刊:
影响因子:
7.4
通讯作者:
Harrison, C. Jill
中科院分区:
文献类型:
--
作者:
Fouracre, Jim P.;Harrison, C. Jill
Land plant life cycles are separated into distinct haploid gametophyte and diploid sporophyte stages. Indeterminate apical growth evolved independently in bryophyte (moss, liverwort, and hornwort) and fern gametophytes, and tracheophyte (vascular plant) sporophytes. The extent to which apical growth in tracheophytes co-opted conserved gametophytic gene networks, or exploited ancestral sporophytic networks, is a long-standing question in plant evolution. The recent phylogenetic confirmation of bryophytes and tracheophytes as sister groups has led to a reassessment of the nature of the ancestral land plant. Here, we review developmental genetic studies of apical regulators and speculate on their likely evolutionary history. The combined results of recent developmental genetics and phylogenetics studies suggest that the ancestral sporophyte was more complex than previously thought.
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