Recent autopolyploidization in a naturalized population of Mimulus guttatus (Phrymaceae)
Recent autopolyploidization in a naturalized population of Mimulus guttatus (Phrymaceae)
复制标题
酸浆草(Phrymacaceae)归化种群的近期自多倍化
DOI:
10.1093/botlinnean/box052
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发表时间:
2017
影响因子:
2.4
通讯作者:
Simón-Porcar V
中科院分区:
文献类型:
--
作者:
Simón-Porcar V
Polyploidization can trigger rapid changes in morphology, ecology and genomics even in the absence of associated hybridization. However, disentangling the immediate biological consequences of genome duplication from the evolutionary change that subsequently accumulates in polyploid lineages requires the identification and analysis of recently formed polyploids. We investigated the incidence of polyploidization in introduced populations ofMimulus guttatusin the UK and report the discovery of a new mixed diploid–autopolyploid population in the Shetland Isles. We conducted a genetic analysis of six Shetland populations to investigate whether tetraploid individuals may have originated from local diploid plants and compared the morphology of tetraploids and local diploids to assess the phenotypic consequences of genome duplication. Autotetraploids are genetically close to sympatric diploids, suggesting that they have originated locally. Phenotypically, whole genome duplication has resulted in clear differences between ploidies, with tetraploids showing delayed phenology and larger flowers, leaves and stems than diploids. Our results support the hypothesis that novel evolutionary lineages can rapidly originate via polyploidization. The newly discovered autopolyploidization event in a non-nativeMimuluspopulation provides an opportunity to investigate the early causes and consequences of polyploidization in the wild.
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影响因子:
3.3
作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
影响因子:
3.8
作者:
Mario Vallejo;G. Lye
通讯作者:
G. Lye
DOI:
10.1111/evo.12678
发表时间:
2015-06
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
Vallejo-Marín M;Buggs RJA;Cooley AM;Puzey JR
通讯作者:
Puzey JR
DOI:
--
发表时间:
1964
期刊:
影响因子:
--
作者:
M. Mia;B. B. Mukherjee;R. K. Vickery
通讯作者:
R. K. Vickery
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
N. Taylor;R. Smith
通讯作者:
R. Smith