Genetic dissection of the fuzzless seed trait in Gossypium barbadense

Cotton fibres are single-celled trichomes arising from the epidermal cells of the seed coat and may be either long (lint) or very short (fuzz). The dominant fuzzless N1 of Gossypium hirsutum is a defective allele of the At-subgenome homoeolog of MYB25-like, but the genetic components underlying the...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 69(2018), 5 vom: 23. Feb., Seite 997-1009
1. Verfasser: Zhu, Qian-Hao (VerfasserIn)
Weitere Verfasser: Yuan, Yuman, Stiller, Warwick, Jia, Yinhua, Wang, Pengpeng, Pan, Zhaoe, Du, Xiongming, Llewellyn, Danny, Wilson, Iain
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Plant Proteins
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520 |a Cotton fibres are single-celled trichomes arising from the epidermal cells of the seed coat and may be either long (lint) or very short (fuzz). The dominant fuzzless N1 of Gossypium hirsutum is a defective allele of the At-subgenome homoeolog of MYB25-like, but the genetic components underlying the recessive fuzzless trait from G. barbadense (Gb) are unknown. We have identified five genetic loci, including a major contributing locus containing MYB25-like_Dt, associated with Gb fuzzless seeds based on genotyping of fuzzy and fuzzless near isogenic lines (NILs) from an interspecies cross (G. barbadense × G. hirsutum). At 3 d post-anthesis when fuzz fibres are initiating, expression of MYB25-like_Dt was significantly lower in fuzzless NILs than in fuzzy seeded NILs, while higher MYB25-like_Dt expression was associated with more seed fuzz across different cotton genotypes. Phenotypic and genotypic analysis of MYB25-like homoeoalleles in cottons showing different fibre phenotypes and their crossing progeny indicated that both MYB25-like_At and MYB25-like_Dt are associated with lint development, and that fuzz development is mainly determined by the expression level of MYB25-like_Dt at ~3 d post-anthesis. Expression of Gb fuzzless seeds depends on genetic background and interactions amongst the multiple loci identified. MYB25-like_Dt is one of the best candidates for N2 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Yuan, Yuman  |e verfasserin  |4 aut 
700 1 |a Stiller, Warwick  |e verfasserin  |4 aut 
700 1 |a Jia, Yinhua  |e verfasserin  |4 aut 
700 1 |a Wang, Pengpeng  |e verfasserin  |4 aut 
700 1 |a Pan, Zhaoe  |e verfasserin  |4 aut 
700 1 |a Du, Xiongming  |e verfasserin  |4 aut 
700 1 |a Llewellyn, Danny  |e verfasserin  |4 aut 
700 1 |a Wilson, Iain  |e verfasserin  |4 aut 
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773 1 8 |g volume:69  |g year:2018  |g number:5  |g day:23  |g month:02  |g pages:997-1009 
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