Contemporary and future studies in plant speciation, morphological/floral evolution and polyploidy: honouring the scientific contributions of Leslie D. Gottlieb to plant evolutionary biology

Crawford, Daniel J.; Doyle, Jane L.; Soltis, Douglas E.; Soltis, Pamela S.; Wendel, Jonathan F.

doi:10.1098/rstb.2013.0341

Cited by 6 publications

(4 citation statements)

References 143 publications

(224 reference statements)

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“…First, it was reported that ancient whole‐genome duplications (WGDs) successfully survived because they occurred at specific times during major ecological upheavals and periods of extinction (Peer et al ., ). For instance, the ancient burst of genome duplications occurred close to the Cretaceous–Tertiary (K–T) boundary, when most living organisms went extinct (Peer et al ., ; Crawford et al ., ), and the present‐day polyploidy in the Arctic which is one of Earth's most polyploidy‐rich areas (Brochmann et al ., ). Second, many studies on allopolyploids have found that although genome duplication has less effect on gene expression change, it has a greater influence on stress response (Hegarty and Hiscock, ; Church and Spaulding, ; Jackson and Chen, ; Parisod et al ., ).…”

Section: Introductionmentioning

confidence: 99%

microRNAs contribute to enhanced salt adaptation of the autopolyploid Hordeum bulbosum compared with its diploid ancestor

Liu

Sun

2017

The Plant Journal

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MicroRNAs contribute to enhanced salt adaptation of the autopolyploid Hordeum bulbosum compared to its diploid ancestor By Beibei LiuSeveral studies have shown that autopolyploid species can tolerate abiotic stresses better than their diploid ancestor. However, the underlying molecular mechanism is poorly understood. Whole genome duplication can result in the expansion of miRNA families, and the innovative miRNA-target interaction is vital for adaptive response to various environments. The new microRNAs which were induced by genome duplication, also associated with stress response, and the distinctive microRNA networks in tetraploid and diploid Hordeum bulbosum by using high-throughput sequencing. Five miRNAs affected by genome doubling were involved in salt stress response. Of these, miR528b-3p was only detected in the tetraploid plants, and down -regulated in salt stress tetraploid plants relative to that in tetraploid check (CK). Moreover, it was found that miR528b-3p was not only involved in DNA replication and repair but also affected salt stress response. Finally, distinguished microRNAs-targets regulatory networks in both diploid and tetraploid plants were discovered. July 2017 III DedicationI would like to dedicate this work to my boyfriend Chao Wang who has graduated last year. To wait for me graduating, he stays here for another year with me. There is no doubt that without his support and help in my work, I could not finish this work. I also want to express my special thanks to my loving parents. Although they didn't live with me here, it is their words of encouragement and love that support me to complete my graduate study.IV

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Section: Introductionmentioning

confidence: 99%

microRNAs contribute to enhanced salt adaptation of the autopolyploid Hordeum bulbosum compared with its diploid ancestor

Liu

Sun

2017

The Plant Journal

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“…Crosses among taxa of different ploidal levels may lead to hexaploids and other higher level polyploids. Given the potential for polyploids of various natures to have different evolutionary outcomes (Otto and Whitton, 2000; Doyle et al, 2008; Hegarty and Hiscock, 2008; Soltis et al, 2010; Arrigo and Barker, 2012; Buggs et al, 2014; Crawford et al, 2014; Garsmeur et al, 2014; Barker et al, 2016), a better characterization of paleopolyploidies is an important next step in understanding the evolution of plant genomes.…”

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confidence: 99%

Most Compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the Calyceraceae

Barker

Kidder

et al. 2016

American J of Botany

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Our analyses of new samples with new tools provide a revised view of paleopolyploidy in the Compositae. Together with results from a high density Lactuca linkage map, our results suggest that the Compositae and Calyceraceae have a common paleotetraploid ancestor and that most Compositae are descendants of a paleohexaploid. Although paleohexaploids have been previously identified, this is the first example where the paleotetraploid and paleohexaploid lineages have survived over tens of millions of years. The complex polyploidy in the ancestry of the Compositae and Calyceraceae represents a unique opportunity to study the long-term evolutionary fates and consequences of different ploidal levels.

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“…This result, recently substantiated in a survey of 13 additional taxa (Baack et al, 2015), lends further weight to arguments for the importance of early‐acting barriers. However, the diversity of the plant kingdom virtually guarantees that the path to speciation is not uniform across taxa, and identifying predictable elements of the speciation process continues to be a challenge (Stebbins, 1950; Grant, 1981; Rieseberg and Willis, 2007; Crawford et al, 2014).…”

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confidence: 99%

Absence of postmating barriers between a selfing vs. outcrossing Chilean Mimulus species pair

Stanton

Valentin

Wijnen

et al. 2016

American J of Botany

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As in the North American M. guttatus-M. nasutus species pair, postmating barriers contribute little to isolation between M. luteus and M. cupreus. This result reinforces the importance of premating barriers, specifically species differences in reliance on, and accessibility to, animal pollinators. A unique aspect of the M. luteus-M. cupreus pair is the recent gain of red floral anthocyanin pigmentation in M. cupreus. On the basis of species differences in vegetative anthocyanin production, a facultative stress-protective response, we propose a potential stress-protective role for the constitutive floral anthocyanins of M. cupreus.

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Contemporary and future studies in plant speciation, morphological/floral evolution and polyploidy: honouring the scientific contributions of Leslie D. Gottlieb to plant evolutionary biology

Abstract: One contribution of 14 to a Theme Issue 'Contemporary and future studies in plant speciation, morphological/floral evolution and polyploidy: honouring the scientific contributions of Leslie D. Gottlieb to plant evolutionary biology'.

Cited by 6 publications

References 143 publications

microRNAs contribute to enhanced salt adaptation of the autopolyploid Hordeum bulbosum compared with its diploid ancestor

microRNAs contribute to enhanced salt adaptation of the autopolyploid Hordeum bulbosum compared with its diploid ancestor

Most Compositae (Asteraceae) are descendants of a paleohexaploid and all share a paleotetraploid ancestor with the Calyceraceae

Absence of postmating barriers between a selfing vs. outcrossing Chilean Mimulus species pair

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