Advances in the methods of detecting interspecific gene introgression and their applications

Li, Lingling; Cheng, Xiang; Xiao, Yu; Hu, Xin‐Sheng; Chen, XiaoYang

doi:10.1360/ssv-2020-0126

Cited by 2 publications

(1 citation statement)

References 45 publications

(48 reference statements)

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“…Biological studies have shown that C.praecox is a heterogamous pollinated plant, which is easy to hybridize in nature, so the progeny have a wide range of types of trait variation [21]. The mating systems of plants in nature are complex and diverse, and the mating (6) systems can be categorized into seven types, with a high degree of variability among different plant mating systems, which usually include a variety of reproductive strategies, such as selfing, outcrossing, and parthenogenetic selfing (mixed mating) [22,23]. C.praecox belongs to the group that mainly undergoes heterosis, with the presence of a small number of self-fertilization [12].…”

Section: Discussionmentioning

confidence: 99%

Transcriptomics analysis reveals the molecular mechanism of male sterility in Chimonanthus praecox

Liu,

Wu,

Cao

et al. 2024

Preprint

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Background Chimonanthus praecox is a unique ornamental and economic flowering tree in China, and after thousands of years of cultivation, it has produced a large number of varieties and a rich variety of types. C.praecox utilizes heterozygous and dioecious mating systems that are mainly heterozygous and partially autogamous, thus ensuring the inheritance of good genes of the species, and promoting the improvement of plant varieties. Male sterility is widespread in flowering plants and is an important tool for the genetic improvement of plants and optimization using hybrid advantage, but there has never been any report on male sterile material and related studies in C.praecox. Result In this study, we reported for the first time the plant material of male sterility in C.praecox and preliminarily investigated the molecular mechanism of male sterility using transcriptome technology. The results showed that male sterility in C.praecox was already formed during the budding period and presumably occurred during the pre-mature stage of pollen cell maturation. It was also found that differentially expressed genes in starch and sugar metabolic pathways and phytohormone signaling pathways showed regular expression trends. Conclusion This study reported for the first time the germplasm resources of male sterility in C.praecoxand explored the molecular mechanism of their male sterility, which can provide new ideas for the cultivation and genetic improvement of C.praecox as well as the study of the molecular mechanism of male sterility formation.

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Section: Discussionmentioning

confidence: 99%

Transcriptomics analysis reveals the molecular mechanism of male sterility in Chimonanthus praecox

Liu,

Wu,

Cao

et al. 2024

Preprint

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A Community-Based Framework Integrates Interspecific Interactions into Forest Genetic Conservation

Wang,

Xiao,

et al. 2024

Plants

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Forest genetic conservation is typically species-specific and does not integrate interspecific interaction and community structure. It mainly focuses on the theories of population and quantitative genetics. This approach depicts the intraspecific patterns of population genetic structure derived from genetic markers and the genetic differentiation of adaptive quantitative traits in provenance trials. However, it neglects possible interspecific interaction in natural forests and overlooks natural hybridization or subspeciation. We propose that the genetic diversity of a given species in a forest community is shaped by both intraspecific population and interspecific community evolutionary processes, and expand the traditional forest genetic conservation concept under the community ecology framework. We show that a community-specific phylogeny derived from molecular markers would allow us to explore the genetic mechanisms of a tree species interacting with other resident species. It would also facilitate the exploration of a species’ ecological role in forest community assembly and the taxonomic relationship of the species with other species specific to its resident forest community. Phylogenetic β-diversity would assess the similarities and differences of a tree species across communities regarding ecological function, the strength of selection pressure, and the nature and extent of its interaction with other species. Our forest genetic conservation proposal that integrates intraspecific population and interspecific community genetic variations is suitable for conserving a taxonomic species complex and maintaining its evolutionary potential in natural forests. This provides complementary information to conventional population and quantitative genetics-based conservation strategies.

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Advances in the methods of detecting interspecific gene introgression and their applications

Abstract: Diversification of primary gene pool through introgression of resistance to foliar diseases from synthetic amphidiploids to cultivated groundnut (Arachis hypogaea L.

Cited by 2 publications

References 45 publications

Transcriptomics analysis reveals the molecular mechanism of male sterility in Chimonanthus praecox

Transcriptomics analysis reveals the molecular mechanism of male sterility in Chimonanthus praecox

A Community-Based Framework Integrates Interspecific Interactions into Forest Genetic Conservation

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