What question did this study set out to answer?

Assess the levels and geographic patterns of genetic diversity across Gossypium hirsutum and determine the evolutionary origin of modern Upland cotton cultivars.

November 1, 1992American Journal of Botany

Genetic Diversity in Gossypium Hirsutum and the Origin of Upland Cotton

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Authors

JWJonathan F. WendelKarlsruhe Institute of Technology CBCurt L. BrubakerCommonwealth Scientific and Industrial Research Organisation APA. E. PercivalAgricultural Research Service

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Implication

Genetic analysis reveals two diversity centers and low cultivar variation in Gossypium hirsutum, indicating minimal transspecific gene retention in modern Upland cotton.

Key Points

Assess the levels and geographic patterns of genetic diversity across Gossypium hirsutum and determine the evolutionary origin of modern Upland cotton cultivars.
Screened allozyme variation across 50 genetic loci in 538 accessions spanning the geographic and morphological diversity of G. hirsutum.
Evaluated 50 modern Upland cultivars to assess the retention of introgressed alleles from related species.
Identified two primary centers of genetic diversity in southern Mexico-Guatemala and the Caribbean, with prominent G. barbadense introgression in Caribbean sympatric zones.
Traced modern Upland cultivars directly to Mexican highland germplasm derived from southern Mexico and Guatemala.
Observed low overall genetic variation and zero unique alleles across all 50 examined Upland cultivars, showing that retention of transspecific genetic material from breeding is minimal.

Cite This Study

Wendel et al. (1992) studied this question.

synapsesocial.com/papers/6a97c7f1894a49665d15d7df https://doi.org/10.1002/j.1537-2197.1992.tb13734.x

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Implication

Genetic analysis reveals two diversity centers and low cultivar variation in Gossypium hirsutum, indicating minimal transspecific gene retention in modern Upland cotton.

Genetic Diversity in Gossypium Hirsutum and the Origin of Upland Cotton

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Implication

Key Points

Cite This Study

Genetic Diversity in Gossypium Hirsutum and the Origin of Upland Cotton

Discussion

Member takes

Implication

Key Points

Cite This Study

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