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- W2487979500 endingPage "1374" @default.
- W2487979500 startingPage "1358" @default.
- W2487979500 abstract "PREMISE OF THE STUDY: Polyploidy is widely recognized as a mechanism of diversification. Contributions of polyploidy to specific pre- and postzygotic barriers—and classifications of polyploid speciation as “ecological” vs. “non-ecological”—are more contentious. Evaluation of these issues requires comprehensive studies that test ecological characteristics of cytotypes as well as the coincidence of genetic structure with cytotype distributions. METHODS: We investigated a classical example of autopolyploid speciation, Larrea tridentata, at multiple areas of cytotype co-occurrence. Habitat and phenological differences were compared between diploid, tetraploid, and hexaploid populations on the basis of edaphic, community composition, and flowering time surveys. Frequency of hybridization between diploids and tetraploids was investigated using a diploid-specific chloroplast DNA (cpDNA) marker; genetic structure for all cytotypes was assessed using amplified fragment length polymorphisms (AFLPs). KEY RESULTS: Across contact zones, we found cytotypes in habitats distinguished by soil and vegetation. We observed modest differences in timing and production of flowers, indicating a degree of assortative mating that was asymmetric between cytotypes. Nonetheless, cpDNA analyses in diploid–tetraploid contact zones suggested that ∼5% of tetraploid plants had hybrid origins involving unilateral sexual polyploidization. Genetic structure of AFLPs largely coincided with cytotype distributions in diploid–tetraploid contact zones. In contrast, there was little structure in areas of contact between tetraploids and hexaploids, suggesting intercytotype gene flow or recurrent hexaploid formation. CONCLUSIONS: Diploid, tetraploid, and hexaploid cytotypes of L. tridentata are segregated by environmental distributions and flowering phenology in contact zones, with diploid and tetraploid populations having corresponding differences in genetic structure." @default.
- W2487979500 created "2016-08-23" @default.
- W2487979500 creator A5012485886 @default.
- W2487979500 creator A5070773851 @default.
- W2487979500 creator A5091060841 @default.
- W2487979500 date "2016-07-01" @default.
- W2487979500 modified "2023-09-29" @default.
- W2487979500 title "Ecological distributions, phenological isolation, and genetic structure in sympatric and parapatric populations of the <i>Larrea tridentata</i> polyploid complex" @default.
- W2487979500 cites W129302041 @default.
- W2487979500 cites W1512212999 @default.
- W2487979500 cites W1588591742 @default.
- W2487979500 cites W1619623942 @default.
- W2487979500 cites W1840550162 @default.
- W2487979500 cites W1842686806 @default.
- W2487979500 cites W1883203158 @default.
- W2487979500 cites W1888922566 @default.
- W2487979500 cites W1899420018 @default.
- W2487979500 cites W1919929554 @default.
- W2487979500 cites W1943921630 @default.
- W2487979500 cites W1963887901 @default.
- W2487979500 cites W1968238102 @default.
- W2487979500 cites W1968295163 @default.
- W2487979500 cites W1971191540 @default.
- W2487979500 cites W1979324999 @default.
- W2487979500 cites W1983584418 @default.
- W2487979500 cites W1984358611 @default.
- W2487979500 cites W1987031227 @default.
- W2487979500 cites W1990074132 @default.
- W2487979500 cites W1990601654 @default.
- W2487979500 cites W1990609696 @default.
- W2487979500 cites W1993881638 @default.
- W2487979500 cites W1995892966 @default.
- W2487979500 cites W2000259947 @default.
- W2487979500 cites W2007237743 @default.
- W2487979500 cites W2012428132 @default.
- W2487979500 cites W2019406075 @default.
- W2487979500 cites W2019914177 @default.
- W2487979500 cites W2020256184 @default.
- W2487979500 cites W2021533428 @default.
- W2487979500 cites W2023557511 @default.
- W2487979500 cites W2024565700 @default.
- W2487979500 cites W2033282516 @default.
- W2487979500 cites W2034017401 @default.
- W2487979500 cites W2034987172 @default.
- W2487979500 cites W2035839217 @default.
- W2487979500 cites W2036994712 @default.
- W2487979500 cites W2040114713 @default.
- W2487979500 cites W2042770634 @default.
- W2487979500 cites W2043047684 @default.
- W2487979500 cites W2044557864 @default.
- W2487979500 cites W2047661928 @default.
- W2487979500 cites W2049670427 @default.
- W2487979500 cites W2052605678 @default.
- W2487979500 cites W2056520799 @default.
- W2487979500 cites W2066562574 @default.
- W2487979500 cites W2067808308 @default.
- W2487979500 cites W2071725864 @default.
- W2487979500 cites W2073504781 @default.
- W2487979500 cites W2074822811 @default.
- W2487979500 cites W2078162724 @default.
- W2487979500 cites W2078793224 @default.
- W2487979500 cites W2083783909 @default.
- W2487979500 cites W2087755085 @default.
- W2487979500 cites W2088835404 @default.
- W2487979500 cites W2089041577 @default.
- W2487979500 cites W2091982012 @default.
- W2487979500 cites W2094730423 @default.
- W2487979500 cites W2096443331 @default.
- W2487979500 cites W2096448674 @default.
- W2487979500 cites W2096648740 @default.
- W2487979500 cites W2099568761 @default.
- W2487979500 cites W2101543272 @default.
- W2487979500 cites W2102333201 @default.
- W2487979500 cites W2105634166 @default.
- W2487979500 cites W2106874436 @default.
- W2487979500 cites W2108291371 @default.
- W2487979500 cites W2109915036 @default.
- W2487979500 cites W2113017002 @default.
- W2487979500 cites W2113727170 @default.
- W2487979500 cites W2115189710 @default.
- W2487979500 cites W2116060759 @default.
- W2487979500 cites W2116118660 @default.
- W2487979500 cites W2118396727 @default.
- W2487979500 cites W2121474356 @default.
- W2487979500 cites W2124020140 @default.
- W2487979500 cites W2125153751 @default.
- W2487979500 cites W2125747344 @default.
- W2487979500 cites W2125817102 @default.
- W2487979500 cites W2127490915 @default.
- W2487979500 cites W2131212430 @default.
- W2487979500 cites W2135760954 @default.
- W2487979500 cites W2136109113 @default.
- W2487979500 cites W2139681286 @default.
- W2487979500 cites W2140014726 @default.
- W2487979500 cites W2143349775 @default.
- W2487979500 cites W2145158079 @default.
- W2487979500 cites W2145923193 @default.
- W2487979500 cites W2147587211 @default.