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Comment
. 2021 Feb 9;127(3):vi-vii.
doi: 10.1093/aob/mcaa194.

The rachis cannot hold, plants fall apart. A commentary on: 'The unique disarticulation layer formed in the rachis of Aegilops longissima likely results from the spatial co-expression of Btr1 and Btr2'

Elizabeth A Kellogg  1
Affiliations
Comment

The rachis cannot hold, plants fall apart. A commentary on: 'The unique disarticulation layer formed in the rachis of Aegilops longissima likely results from the spatial co-expression of Btr1 and Btr2'

Elizabeth A Kellogg. Ann Bot. .

Abstract

This article comments on:

Xiaoxue Zeng, Gang Chen, Lei Wang, Akemi Tagiri, Shinji Kikuchi, Hidenori Sassa and Takao Komatsuda, The unique disarticulation layer formed in the rachis of Aegilops longissima probably results from the spatial co-expression of Btr1 and Btr2, Annals of Botany, Volume 127, Issue 3, 16 February 2021, Pages 297–304, https://doi.org/10.1093/aob/mcaa147

Keywords: Aegilops longissima; Rachis; seed dispersal.

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Figures

Fig. 1.
Fig. 1.
Inflorescences of (A) Hordeum vulgare and (B) Aegilops longissima. In H. vulgare, Btr2 is expressed in a zone just above the nodes. At maturity, the rachis breaks up to produce spikelets attached to the node and the internode below. In A. longissima, Btr2 is also expressed just above the nodes but only in the distal nodes of the inflorescence, mostly above node 4. Btr1 is expressed in the cortical cells in the proximal four nodes. The rachis breaks only around node 4, where expression of the two Btr genes overlaps. Hordeum has three spikelets per node but only the central fertile one is illustrated here.
See this image and copyright information in PMC

Comment on

References

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