Nonreciprocal complementation of KNOX gene function in land plants.
Nonreciprocal complementation of KNOX gene function in land plants.
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DOI：
10.1111/nph.14318
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发表时间：
2017-10
期刊：
影响因子：
--
通讯作者：
Langdale JA
中科院分区：
文献类型：
--
作者：
Frangedakis E;Saint-Marcoux D;Moody LA;Rabbinowitsch E;Langdale JA
I类KNOTTED‐LIKE HOMEOBOX（KNOX）蛋白调节苔藓和开花植物中多细胞二倍体孢子体的发育;然而，它们发挥功能的形态学背景不同。为了确定I类KNOX功能如何随着陆地植物的进化而改变，进行了系统发育分析和跨物种互补测定。我们的数据显示，轮藻姐妹群内的陆地植物的重复导致不同的I类和II类KNOX基因家族。随后，I类序列分歧，基本上在非维管brandite组（苔类，藓类和金鱼藻），藓类序列是最相似的维管植物。尽管有这种相似性，苔藓突变体没有补充维管植物KNOX基因。相反，拟南芥短梗（bp-9）突变体由来自苔藓小立碗藓的PpMKN 2基因互补。石松KNOX基因也互补bp-9，而蕨类基因仅部分互补突变体。这种石松/蕨类植物的区别反映在KNOX相互作用的BELL蛋白的遗传学中，因为基因复制发生在两个群体的分歧之后。总之，我们的研究结果表明，苔藓MKN 2蛋白可以在更广泛的发展背景下比维管植物KNOX蛋白，狭窄的范围逐步演变为石松，蕨类植物和开花植物分歧。
Class I KNOTTED‐LIKE HOMEOBOX (KNOX) proteins regulate development of the multicellular diploid sporophyte in both mosses and flowering plants; however, the morphological context in which they function differs. In order to determine how Class I KNOX function was modified as land plants evolved, phylogenetic analyses and cross‐species complementation assays were performed. Our data reveal that a duplication within the charophyte sister group to land plants led to distinct Class I and Class II KNOX gene families. Subsequently, Class I sequences diverged substantially in the nonvascular bryophyte groups (liverworts, mosses and hornworts), with moss sequences being most similar to those in vascular plants. Despite this similarity, moss mutants were not complemented by vascular plant KNOX genes. Conversely, the Arabidopsis brevipedicellus (bp‐9) mutant was complemented by the PpMKN2 gene from the moss Physcomitrella patens. Lycophyte KNOX genes also complemented bp‐9 whereas fern genes only partially complemented the mutant. This lycophyte/fern distinction is mirrored in the phylogeny of KNOX‐interacting BELL proteins, in that a gene duplication occurred after divergence of the two groups. Together, our results imply that the moss MKN2 protein can function in a broader developmental context than vascular plant KNOX proteins, the narrower scope having evolved progressively as lycophytes, ferns and flowering plants diverged.
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影响因子：
14.8
作者：
Kelley LA;Mezulis S;Yates CM;Wass MN;Sternberg MJ
通讯作者：
Sternberg MJ
DOI：
10.1073/pnas.94.25.13749
发表时间：
1997-12-09
影响因子：
11.1
作者：
Bharathan, G;Janssen, BJ;Sinha, N
通讯作者：
Sinha, N
影响因子：
2.9
作者：
Kawai, Junko;Tanabe, Yoichi;Ito, Motomi
通讯作者：
Ito, Motomi
影响因子：
16.6
作者：
Hori K;Maruyama F;Fujisawa T;Togashi T;Yamamoto N;Seo M;Sato S;Yamada T;Mori H;Tajima N;Moriyama T;Ikeuchi M;Watanabe M;Wada H;Kobayashi K;Saito M;Masuda T;Sasaki-Sekimoto Y;Mashiguchi K;Awai K;Shimojima M;Masuda S;Iwai M;Nobusawa T;Narise T;Kondo S;Saito H;Sato R;Murakawa M;Ihara Y;Oshima-Yamada Y;Ohtaka K;Satoh M;Sonobe K;Ishii M;Ohtani R;Kanamori-Sato M;Honoki R;Miyazaki D;Mochizuki H;Umetsu J;Higashi K;Shibata D;Kamiya Y;Sato N;Nakamura Y;Tabata S;Ida S;Kurokawa K;Ohta H
通讯作者：
Ohta H
影响因子：
7.2
作者：
Clough, SJ;Bent, AF
通讯作者：
Bent, AF