Genetic basis of nectar guide trichome variation between bumblebee- and self-pollinated monkeyflowers (Mimulus): role of the MIXTA-like gene GUIDELESS

被引:3
作者
Chen, Hongfei [1 ]
Yuan, Yao-Wu [1 ,2 ]
机构
[1] Univ Connecticut, Dept Ecol & Evolutionary Biol, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Syst Genom, Storrs, CT 06269 USA
关键词
Mimulus lewisii; Mimulus parishii; Pollination syndrome; Near-isogenic line (NIL); R2R3-MYB; MYB TRANSCRIPTION FACTOR; ZINC-FINGER PROTEIN; ARABIDOPSIS; INITIATION; CELL; BIOSYNTHESIS; DIFFERENTIATION; EVOLUTION; ENCODES; ANTHOCYANIN;
D O I
10.1186/s12870-024-04736-y
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Nectar guide trichomes play crucial ecological roles in bee-pollinated flowers, as they serve as footholds and guides for foraging bees to access the floral rewards. However, the genetic basis of natural variation in nectar guide trichomes among species remains poorly understood. In this study, we performed genetic analysis of nectar guide trichome variation between two closely related monkeyflower (Mimulus) species, the bumblebee-pollinated Mimulus lewisii and self-pollinated M. parishii. We demonstrate that a MIXTA-like R2R3-MYB gene, GUIDELESS, is a major contributor to the nectar guide trichome length variation between the two species. The short-haired M. parishii carries a recessive allele due to non-synonymous substitutions in a highly conserved motif among MIXTA-like MYB proteins. Furthermore, our results suggest that besides GUIDELESS, additional loci encoding repressors of trichome elongation also contribute to the transition from bumblebee-pollination to selfing. Taken together, these results suggest that during a pollination syndrome switch, changes in seemingly complex traits such as nectar guide trichomes could have a relatively simple genetic basis, involving just a few genes of large effects.
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页数:9
相关论文
共 66 条
[31]   Lost in translation: Molecular basis of reduced flower coloration in a self-pollinated monkeyflower (Mimulus) species [J].
Liang, Mei ;
Foster, Caitlin E. ;
Yuan, Yao-Wu .
SCIENCE ADVANCES, 2022, 8 (37)
[32]   The MYB transcription factor GhMYB25 regulates early fibre and trichome development [J].
Machado, Adriane ;
Wu, Yingru ;
Yang, Youming ;
Llewellyn, Danny J. ;
Dennis, Elizabeth S. .
PLANT JOURNAL, 2009, 59 (01) :52-62
[33]   Functional Specialization of the TRANSPARENT TESTA GLABRA1 Network Allows Differential Hormonal Control of Laminal and Marginal Trichome Initiation in Arabidopsis Rosette Leaves [J].
Maes, Lies ;
Inze, Dirk ;
Goossens, Alain .
PLANT PHYSIOLOGY, 2008, 148 (03) :1453-1464
[34]   Ancient and recent introgression shape the evolutionary history of pollinator adaptation and speciation in a model monkeyflower radiation (Mimulus section Erythranthe) [J].
Nelson, Thomas C. ;
Stathos, Angela M. ;
Vanderpool, Daniel D. ;
Finseth, Findley R. ;
Yuan, Yao-wu ;
Fishman, Lila .
PLOS GENETICS, 2021, 17 (02)
[35]   A MYB GENE REQUIRED FOR LEAF TRICHOME DIFFERENTIATION IN ARABIDOPSIS IS EXPRESSED IN STIPULES [J].
OPPENHEIMER, DG ;
HERMAN, PL ;
SIVAKUMARAN, S ;
ESCH, J ;
MARKS, MD .
CELL, 1991, 67 (03) :483-493
[36]   Induced mutations affecting pollinator choice in Mimulus lewisii (Phrymaceae) [J].
Owen, Christina R. ;
Bradshaw, H. D. .
ARTHROPOD-PLANT INTERACTIONS, 2011, 5 (03) :235-244
[37]   The loss-of-function GLABROUS 3 mutation in cucumber is due to LTR-retrotransposon insertion in a class IV HD-ZIP transcription factor gene CsGL3 that is epistatic over CsGL1 [J].
Pan, Yupeng ;
Bo, Kailiang ;
Cheng, Zhihui ;
Weng, Yiqun .
BMC PLANT BIOLOGY, 2015, 15
[38]  
Payne CT, 2000, GENETICS, V156, P1349
[39]   Development of three different cell types is associated with the activity of a specific MYB transcription factor in the ventral petal of Antirrhinum majus flowers [J].
Perez-Rodriguez, M ;
Jaffe, FW ;
Butelli, E ;
Glover, BJ ;
Martin, C .
DEVELOPMENT, 2005, 132 (02) :359-370
[40]   TRIPTYCHON and CAPRICE mediate lateral inhibition during trichome and root hair patterning in Arabidopsis [J].
Schellmann, S ;
Schnittger, A ;
Kirik, V ;
Wada, T ;
Okada, K ;
Beermann, A ;
Thumfahrt, J ;
Jürgens, G ;
Hülskamp, M .
EMBO JOURNAL, 2002, 21 (19) :5036-5046