Physcomitrium LATERAL SUPPRESSOR genes promote formative cell divisions to produce germ cell lineages in both male and female gametangia

© 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.

Détails bibliographiques
Publié dans:The New phytologist. - 1979. - 245(2025), 5 vom: 01. März, Seite 2004-2015
Auteur principal: Horiuchi, Yuta (Auteur)
Autres auteurs: Umakawa, Naoyuki, Otani, Rina, Tamada, Yosuke, Kosetsu, Ken, Hiwatashi, Yuji, Wakisaka, Rena, Yoshida, Saiko, Murata, Takashi, Hasebe, Mitsuyasu, Ishikawa, Masaki, Kofuji, Rumiko
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:The New phytologist
Sujets:Journal Article GRAS Physcomitrium antheridium archegonium formative cell division gametangium Plant Proteins
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520 |a The evolution of green plants from aquatic to terrestrial environments is thought to have been facilitated by the acquisition of gametangia, specialized multicellular organs housing gametes. Antheridia and archegonia, responsible for producing and protecting sperm and egg cells, undergo formative cell divisions to produce a cell to differentiate into germ cell lineages and the other cell to give rise to surrounding structures. However, the genes governing this process remain unidentified. We isolated genes expressed during gametangia development from previously established gene-trap lines of Physcomitrium patens and characterized their function during gametangia formation. We identified P. patens LATERAL SUPPRESSOR 1 (PpLAS1) from the gene-trap library, encoding a GRAS transcription factor. The double-deletion mutant with its paralog PpLAS2 failed to form inner cells in both gametangia. PpLASs are expressed in cells undergoing formative cell division, and introducing PpLAS1 into the double-deletion mutant successfully rescued the phenotype. These findings underscore the pivotal role of PpLASs in regulating formative cell divisions, ensuring the separation of reproductive cell lineages from surrounding cells in antheridia and archegonia. Furthermore, they suggest a link between PpLASs and the evolutionary origin of male and female gametangia in the common ancestor of land plants 
650 4 |a Journal Article 
650 4 |a GRAS 
650 4 |a Physcomitrium 
650 4 |a antheridium 
650 4 |a archegonium 
650 4 |a formative cell division 
650 4 |a gametangium 
650 7 |a Plant Proteins  |2 NLM 
700 1 |a Umakawa, Naoyuki  |e verfasserin  |4 aut 
700 1 |a Otani, Rina  |e verfasserin  |4 aut 
700 1 |a Tamada, Yosuke  |e verfasserin  |4 aut 
700 1 |a Kosetsu, Ken  |e verfasserin  |4 aut 
700 1 |a Hiwatashi, Yuji  |e verfasserin  |4 aut 
700 1 |a Wakisaka, Rena  |e verfasserin  |4 aut 
700 1 |a Yoshida, Saiko  |e verfasserin  |4 aut 
700 1 |a Murata, Takashi  |e verfasserin  |4 aut 
700 1 |a Hasebe, Mitsuyasu  |e verfasserin  |4 aut 
700 1 |a Ishikawa, Masaki  |e verfasserin  |4 aut 
700 1 |a Kofuji, Rumiko  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t The New phytologist  |d 1979  |g 245(2025), 5 vom: 01. März, Seite 2004-2015  |w (DE-627)NLM09818248X  |x 1469-8137  |7 nnas 
773 1 8 |g volume:245  |g year:2025  |g number:5  |g day:01  |g month:03  |g pages:2004-2015 
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