Journal Article10.1007/S10528-006-9049-7
Analysis of Genetic Diversity and Population Differentiation of Larix potaninii var . chinensis Using Microsatellite DNA
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TL;DR: Evidence that L. potaninii var.
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Abstract: Larix potaninii var. chinensis is endemic to China and is found only on several peaks of the Qinling Mountains in Shaanxi Province. In China, it is classified in the second class of national protected rare plants. To estimate genetic diversity and to analyze population genetic structure of L. potaninii var. chinensis, 120 individual samples from six natural populations were assessed using seven Larix SSR primer pairs. The results indicate that the level of genetic diversity of L. potaninii var. chinensis is very high, with a mean number of alleles per locus of 4.71. On the other hand, correspondingly low genetic differentiation was found between populations, with an F (ST) value of 0.116, suggesting that more than four-fifths of the genetic variation resides within populations. Besides the influence of habitat heterogeneity and historical distribution, the high level of genetic diversity of L. potaninii var. chinensis is also attributed to its biological characteristics. The definite genetic differentiation among populations, however, is attributed to the effects of genetic drift and natural selection, which are most likely due to the spatial isolation and inclement climate of the species' habitat. This study also revealed evidence that L. potaninii var. chinensis could be endangered, and some conservation strategies are suggested.
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Citations
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TL;DR: Genetic diversity and population genetic structure of autotetraploid and diploid populations of rice collected from Chengdu Institute of Biology, Chinese Academy of Sciences, were studied based on 36 microsatellite loci and indicated that the gene pools of diploids and autotenoid rice were somewhat dissimilar.
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TL;DR: Phylogenetic analysis based on 36 chloroplast genomes indicates that L. potaninii var.
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Genetic diversity and population structure of Garcinia paucinervis, an endangered species using microsatellite markers
Jun-Jie Zhang,Jun-Jie Zhang,Jun-Jie Zhang,Xiao Wei,Chai Shengfeng,Zheng-Feng Wang,Theophine Akunne,Theophine Akunne,Shao-Hua Wu,Jun-Hong Yi,Wei Jiqing,Zong-You Chen +11 more
TL;DR: A suite of population genetics tests and analyses were used to investigate genetic diversity and structure of the 11 natural populations of G. paucinervis in Guangxi and Yunnan Provinces, China, and revealed a low to moderate genetic diversity.
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TL;DR: The genetic differences between the highest subpopulation and the other ones suggest that the founder effect may be an important factor influencing genetic differentiation of L. decidua populations at Arpette transect.
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Female gametogeny, fertilization, embryogeny of Larix chinensis and it's systematic significance
Zhao Gui-fang
- 01 Jan 2004
TL;DR: It takes 14 months from the differentiation of female strobilus to the formation of the mature embryo of Larix chinensis Beissn, and the development process of the proembryo is pinoid.
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Morphological and anatomical characteristics of leaf of Larix chinensis and their relationship to environmental factors in Taibaishan Mountain
Xiao Ya-ping
- 01 Jan 2001
TL;DR: The morphological and anatomic leaf characteristics and their main affecting ecological factors of Larix chinensis, which distributes at 3 000～3 400 m in Taibaishan Mountain of Qinling Mountains, was studied by using the method of multivariate statistic.
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