Revealing genetic patterns across ecoregions in the northeastern Pacific of California and Baja California

IF 3.4 2区环境科学与生态学 Q2 ECOLOGY Journal of Biogeography Pub Date : 2024-08-19 DOI:10.1111/jbi.14988

Mariana Ronalda Ferrera-Rodríguez, Luis Malpica-Cruz, Adrián Munguía-Vega, Rodrigo Beas-Luna, Ana Laura Flores-Morales, Alicia Abadía-Cardoso

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Abstract

Aim

We reconstructed the genetic patterns and identified the main genetic breaks of several taxa across California and Baja California coast. Additionally, we evaluated the contribution of different variables to the level of structure.

Location

California and Baja California coast.

Taxon

Fish, invertebrates, algae, seagrass and mammals.

Methods

We generated a map to reconstruct the genetic patterns using genetic information (Fst index and phylogenetic clades distribution) from a literature review of population genetics publications from 2000 to 2023. For the analysis of genetic connectivity drivers, we explored the effect of different variables representing life history traits, reproductive strategies and biogeographic variables and generated five working hypotheses which were evaluated with generalized linear models (GLMs).

Results

We identified 42 genetic breaks from 63 species across our study area. The largest number of breaks occurs from 27° N to 29° N and from 31° N to 35° N. This range includes transition zones between ecoregions such as Punta Eugenia, Baja California, Mexico and Point Conception, California, USA. We also identified Ensenada, Baja California region as a barrier to gene flow. From a transboundary perspective, we found 40 species with connectivity between California and Baja California, including 14 commercial and or recreational species. We found none of the variables explored had a clear effect on the level of genetic differentiation of the species assessed in the region.

Main Conclusion

Genetic breaks among different taxa do not distribute randomly across the latitudinal range from California and Baja California coastal area, rather they are mainly located in transition zones between marine ecoregions. The challenge to identify specific variables that explain general genetic patterns highlights the complexity that drives population connectivity processes in marine species.

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揭示加利福尼亚和下加利福尼亚东北太平洋生态区域的遗传模式

目的我们重建了加利福尼亚和下加利福尼亚海岸多个类群的遗传模式，并确定了主要的遗传断裂。地点加利福尼亚州和下加利福尼亚州海岸分类群鱼类、无脊椎动物、藻类、海草和哺乳动物方法我们利用 2000 年至 2023 年期间发表的种群遗传学文献综述中的遗传信息（Fst 指数和系统发育支系分布）绘制了一张地图，以重建遗传模式。为了分析遗传连接的驱动因素，我们探讨了代表生活史特征、繁殖策略和生物地理变量的不同变量的影响，并提出了五个工作假设，通过广义线性模型（GLMs）对其进行评估。这一范围包括生态区域之间的过渡地带，如墨西哥下加利福尼亚州的 Punta Eugenia 和美国加利福尼亚州的 Point Conception。我们还发现下加利福尼亚州恩塞纳达地区是基因流动的障碍。从跨界角度来看，我们发现加利福尼亚州和下加利福尼亚州之间有 40 个物种具有连通性，其中包括 14 个商业或休闲物种。主要结论不同类群之间的基因断裂并不是随机分布在加利福尼亚和下加利福尼亚沿海地区的纬度范围内，而是主要位于海洋生态区之间的过渡地带。要找出能解释一般遗传模式的特定变量是一项挑战，这凸显了海洋物种种群连接过程的复杂性。

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来源期刊

Journal of Biogeography 环境科学-生态学

CiteScore

7.70

自引率

5.10%

发文量

203

审稿时长

2.2 months

期刊介绍： Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.

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